An important public building of Roman Patra is the amphitheatre, which is gradually being brought to light at the centre of the modern city, not far from the Roman Odeon. Remains of the building are still partially covered by modern houses. Its estimated dimensions are ca. 200X90m., its narrow sides shaped in the form of a horse-shoe. The main entrance was at its western, long, side. The largest and best preserved part of the Amphitheatre has been excavated at its eastern, long, side and commprised 2 or 3 zones. Below the stands were passages and various rooms. It is likely that the amphitheater was donated to Patra by emperor Domitian to celebrate the colony's 100th anniversary between 80 and 90 A.D.