In the rocky landscape of Bassae, in Arcadia, there is one of the most important, for the beauty and harmony thereof, temples of the antiquity. It was dedicated to Apollo Epicurius, Apollo who helps in difficulties. The temple is characterized by numerous innovations, both in its exterior and in its interior arrangement, which render it a unique monument in the history of ancient Greek architecture.
Its erection dates back to 420-400 BC and it is attributed to Iktinos, the architect of the Parthenon. In this building he managed to associate many archaic features, imposed by the conservative religious tradition of the Arcadians, with the new features of the classical era, combining all the three architectural styles, Doric, Ionic and Corinthian. The latter appears for the first time in this temple with a column in the center of its interior. It is the first Greek monument to be included in the UNESCO World Heritage List.