The Temple of Olympian Zeus — the Olympieion — is one of the most dramatically ruined ancient monuments in the world and one of the most consistently misunderstood stops on any Athens itinerary. Visitors approaching along Vasilissis Olgas Avenue see fifteen enormous Corinthian columns standing in a sea of tumbled drums and architectural fragments, the Acropolis rising above them to the north, and Hadrian’s Arch immediately adjacent. What they’re seeing is the remains of the largest temple ever built in ancient Greece — a building that took 638 years to complete, that was left unfinished by the Greeks who conceived it and completed by a Roman emperor who wanted to be worshipped as a god, and whose scale was so extraordinary that even in ruins its column stumps dwarf anything else in the immediate landscape. Understanding what it is, why it looks the way it does, and how it connects to everything else in Athens transforms a 30-minute monument visit into one of the most interesting encounters available in the city’s extraordinary archaeological landscape.
The Temple of Olympian Zeus is included in the combined sites ticket alongside the Acropolis, Ancient Agora, Roman Agora, Hadrian’s Library, Kerameikos, and Panathenaic Stadium — making it a natural addition to any Athens monument day. For the complete Athens monuments picture: our Athens monuments guide covers every significant site. For the combined ticket and optimal sequencing: our one day in Athens itinerary.
The History: 638 Years to Build the Largest Temple in Greece
The construction history of the Temple of Olympian Zeus is one of antiquity’s most remarkable examples of ambition, interruption, and imperial vanity. The story spans from the 6th century BC to the 2nd century AD — a period of 638 years during which Athens rose to the height of classical civilization, fell to Macedonian domination, became a Roman province, and was transformed by a Roman emperor who saw in the unfinished temple an opportunity to define his own legacy.
The original conception (515 BC): The tyrants Hippias and Hipparchos (sons of Peisistratos) began construction of a massive temple to Zeus on the site of an earlier sanctuary. The scale was deliberately unprecedented — the foundation measured 108 by 41 meters, larger than the Parthenon. The tyrants were expelled from Athens in 510 BC after just five years of construction, and the democratic government that replaced them — philosophically opposed to the monument of tyrants — abandoned the project. The foundations and partially raised walls stood incomplete for the next 350 years, the partially built columns and massive stone drums a visible reminder of tyranny rejected.
Antiochus IV Epiphanes (175-164 BC): The Seleucid king of Syria, who modeled himself on Hellenistic royal tradition and saw the completion of the Olympieion as a prestige project, resumed construction using Roman architectural plans and the Corinthian order (the most ornate of the three Greek column orders — Doric, Ionic, Corinthian) that had by then become the standard for temples of Zeus. He worked on it for a decade until his death, adding significant sections but again leaving the temple unfinished. The columns he raised in the Corinthian order set the design template that would eventually be completed.
Emperor Hadrian (131-132 AD): The Roman emperor who loved Greece — who spent more time in Athens than any other Roman ruler, who rebuilt the city’s infrastructure, who founded the Panhellenion (a league of all Greek cities under Roman authority with its headquarters in Athens), and who completed the Olympieion after 638 years of intermittent construction. Hadrian’s motivation was not purely pious — he placed his own cult statue inside the completed temple alongside the massive chryselephantine statue of Zeus, effectively claiming divine association with the king of the Olympian gods. The dedication ceremony in 131 or 132 AD was one of the most elaborate in the Roman world, drawing delegations from across the empire.
The completed temple had 104 Corinthian columns arranged in a double row around the cella (inner chamber) — 8 columns across the front, 20 along each side. Each column was 17.25 meters high (compare: the Parthenon’s Doric columns are 10.43 meters). The effect of 104 columns of this height in a double colonnade must have been overwhelming. Of the 104, 15 remain standing today; a 16th collapsed in a storm in 1852, landing exactly as it fell, its drums scattered in a line that visitors can trace from the street.
Hadrian’s Arch: The Gateway Between Two Cities
Immediately adjacent to the Olympieion, at the entrance to the archaeological site from Vasilissis Olgas Avenue, stands Hadrian’s Arch — a Roman triumphal arch built around 131 AD to mark the boundary between the ancient Athens of Theseus and the new Athens that Hadrian was building. The arch carries two inscriptions: on the western face (facing the Acropolis and the old city) — “This is Athens, the ancient city of Theseus”; on the eastern face (facing the new city) — “This is the city of Hadrian, not of Theseus.”
This is one of the most remarkable inscriptions surviving from antiquity — a Roman emperor literally inscribing in stone his claim to have created a new Athens equivalent in prestige to the ancient one. The arch’s position, with the Acropolis and Parthenon framed in the arch opening when viewed from the east, was carefully calculated: Hadrian wanted the sight-line from his new Athens to the ancient monuments to be organized through his own architectural statement. Standing on the Vasilissis Olgas Avenue side and looking through the arch toward the Acropolis gives you exactly the view Hadrian intended — his architectural frame around Athens’s most famous monument.
The arch is always accessible (it stands on the public street, no entry required) and is most photographically effective in the early morning when the light comes from the east and the Acropolis is visible through the arch opening. The combined sites ticket is not required to view the arch from the street; entry to the Olympieion site behind it requires the ticket.
What You See: Reading the Ruins
The 15 standing columns are the most immediately striking element — each 17.25 meters tall, their Corinthian capitals decorated with the elaborate acanthus-leaf carving that defines the order, their surfaces showing 2,000 years of weathering that has given the marble a warm golden-grey character distinct from the brighter white of better-preserved monuments. The column shafts are made of individual drums stacked and fitted with metal pins — the same construction method as the Parthenon, visible where drum joints are exposed.
The fallen column — the one that collapsed in 1852 — lies exactly where it fell, its drums scattered in a line pointing southeast across the site. This single collapsed column communicates the scale of the complete structure more effectively than any description: the drum diameter is 1.67 meters, the drums are stacked 10-12 per column, and the 17 fallen drums stretch across perhaps 20 meters of ground. Imagining 104 columns of this height and diameter standing in a double colonnade is genuinely difficult even standing among the ruins.
The site also contains: the foundations of the original Peisistratid temple (visible as a lower layer of stonework below the Roman-era remains), a Roman-era house that was built inside the sacred precinct during the long period when the temple was unfinished (an extraordinary testament to how the site’s sacred status lapsed during the abandonment periods), and several column base inscriptions identifying specific columns donated by specific cities in honor of Hadrian.
For the full context of Athens’s ancient monuments and how the Olympieion fits within the city’s archaeological landscape: our Athens monuments guide. For guided tours that interpret the site within the broader Roman Athens context: book through GetYourGuide or Viator. Check current tour ratings on TripAdvisor before booking.
Practical Visitor Information
Location: Vasilissis Olgas 1, directly opposite the National Garden, 800 meters southeast of the Acropolis Museum, 600 meters from the Akropoli metro station (Line 2).
Entry: Included in the combined sites ticket (€30 peak season, €15 off season). The combined ticket covers the Acropolis, Ancient Agora, Roman Agora, Hadrian’s Library, Kerameikos, and Panathenaic Stadium — buy it at whichever site you visit first. Opening hours: 8am-5pm (winter), 8am-8pm (summer). Check current times at odysseus.culture.gr.
Time needed: 30-45 minutes for a thorough visit. The site is smaller than the Acropolis or Agora but rewards slow looking — the column scale, the fallen column, the Hadrian’s Arch inscription, and the foundation layers are all worth examining carefully. The combination with the adjacent Hadrian’s Arch (viewable from the street for free) makes the area a coherent 45-minute archaeological experience.
Best time to visit: Early morning (8-9am) for the most atmospheric light and thin crowds. The site faces east and the morning sun illuminates the columns from behind the Acropolis, creating a quality of light that makes the marble luminous. Book accommodation centrally through Booking.com in Plaka or Koukaki for easy walking distance. For staying connected while navigating Athens monuments: an Airalo eSIM keeps you online.
Combining the Olympieion with Other Sites
The Temple of Olympian Zeus sits at the southeastern edge of Athens’s central monument cluster — easily combined with other sites on foot. The optimal circuits:
The Roman Athens circuit (2-3 hours): Hadrian’s Arch and Olympieion → walk north through the National Garden to Syntagma → Kerameikos (a 20-minute walk west from Syntagma through Monastiraki) → Roman Agora and Tower of the Winds → Ancient Agora. This circuit traces the Rome-era additions to Athens’s architectural landscape — Hadrian’s building program, the Roman commercial market, and the earlier Hellenistic-Roman urban infrastructure — in geographical sequence. The combined sites ticket covers all of it.
The full Athens monuments day: Acropolis (morning) → Acropolis Museum (late morning) → Olympieion and Hadrian’s Arch (early afternoon) → Panathenaic Stadium (late afternoon). Four of the city’s most significant ancient monuments in sequence, all on foot within a 1km radius. Detailed in our one day in Athens itinerary.
The Kerameikos and the Wider Southeastern Athens Archaeological Zone
The Temple of Olympian Zeus sits at the eastern end of what is effectively the largest open archaeological zone in central Athens — a connected series of ancient sites and monuments that runs from Kerameikos in the northwest through the Ancient Agora, around the Acropolis hill, past the Odeon of Herodes Atticus, and southeast to the Olympieion. Walking this circuit over a full day traces the complete physical extent of ancient Athens as it existed at its Classical and Roman peaks.
The Panathenaic Stadium is 600 meters northeast of the Olympieion — both the most historically connected site to the Olympieion (both were key components of Athens’s ancient sporting and religious landscape) and a genuinely moving experience in its own right as the world’s only all-marble stadium and the site of the 1896 Olympic Games. Including both in a single southeast Athens morning is efficient and rewarding: the Olympieion and Hadrian’s Arch (45 minutes), walk north past the National Garden to the stadium (15 minutes), stadium visit (60 minutes), then back through the National Garden to the Acropolis area for afternoon sightseeing. The whole circuit is walkable without any public transport.
For a complete guided tour of this southeastern archaeological zone — the Olympieion, Hadrian’s Arch, the National Garden’s ancient remains, and the Panathenaic Stadium in context — book through GetYourGuide. The guides who specialize in the Roman Athens circuit (as opposed to the standard Acropolis tour) bring the specific period and its specific characters (Hadrian, Antiochus IV, the Peisistratids) alive in ways that make a 2-hour walk genuinely revelatory. Check current tour ratings on TripAdvisor for the best current operators.
The Olympieion at Night: The Floodlit View
The Temple of Olympian Zeus is floodlit after dark, and the 15 standing columns illuminated against the night sky create one of Athens’s finest nocturnal views — less famous than the floodlit Acropolis but in some ways more dramatically beautiful because the columns’ height and isolation makes the artificial light more effective. The best viewing point: the junction of Vasilissis Olgas and Amalias Avenues, looking southwest at the columns with Hadrian’s Arch in the foreground and the Acropolis visible above and behind. This view — three layers of Athenian history (ancient, Roman, ancient) in a single night photograph — is one of the finest available in any illuminated European city. The site itself is closed after hours, but the columns are visible (and photographable) from the public streets that surround them. The evening walk from the Olympieion to the Plaka restaurants for dinner — the floodlit columns behind you, the lit Acropolis ahead — is one of those specifically Athens pleasures that the rooftop bar guides capture but the monument guides rarely do.
Zeus in Greek Mythology: Why This Temple Mattered
The choice of Zeus as the deity for Athens’s largest temple reflects the god’s position in the Greek pantheon: king of the Olympians, ruler of sky and weather, enforcer of divine law, patron of hospitality (xenia) and suppliants. A temple to Zeus of this scale was a statement about Athens’s place in the Greek world — the city that had produced the Parthenon (Athena’s temple) claiming equal devotion to the father of the gods who sat above all city patrons. The Greek mythology context — Zeus’s role in the Olympian order, his relationships with the other gods, his role as divine judge — is covered in our dedicated guide. For the full pantheon: our Greek gods guide.
Frequently Asked Questions
How long did it take to build the Temple of Olympian Zeus?
638 years — begun in 515 BC by the tyrants Hippias and Hipparchos, worked on intermittently over six centuries, and finally completed by the Roman Emperor Hadrian in 131-132 AD.
How many columns does the Temple of Olympian Zeus have?
15 columns remain standing of the original 104. The complete temple had 8 columns across the front and 20 along each side, in a double colonnade. Each column is 17.25 meters tall.
Is the Temple of Olympian Zeus worth visiting?
Yes — particularly for visitors interested in the Roman period of Athens (it’s the finest Roman-era monument in the city), the history of tyranny and democracy in ancient Athens (the abandonment story), and the specific aesthetic of Corinthian columns at this scale. 30-45 minutes, included in the combined sites ticket.
What is Hadrian’s Arch near the Temple of Zeus?
A Roman triumphal arch built by Emperor Hadrian around 131 AD marking the boundary between ancient and new Athens. The inscriptions on each face explicitly identify this division. Always accessible from the street at no charge.
Related Athens Monument Guides
For all Athens monuments: our Athens monuments guide. For the finest preserved ancient temple in Athens: our Temple of Hephaestus guide. For the Parthenon: our Parthenon facts guide. For the full Athens day: our one day in Athens itinerary.
Ready to Visit the Olympieion?
Buy the combined sites ticket at the Acropolis (visit there first in the morning), then walk southeast to the Olympieion in the early afternoon. Read the Hadrian’s Arch inscriptions from the street before entering the site. Stand beneath a standing column and look up. Book accommodation through Booking.com. For guided ancient Athens tours: GetYourGuide. For more Athens guides, explore athensglance.com.

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