In the central Peloponnese, at Vasses in ancient Figaleia, at an elevation of 1.130 m, stands the temple of Apollo Epicurius. The inspiration behind its construction and the architect is considered to be the great Ictinus. This universal architectural structure was the first of the great monuments of Greece to be recognised by UNESCO as a World Heritage Site in 1986. The temple can be approached from Ilia, after a journey along the banks of the river Neda, or from Tripoli and Megalopolis. The temple, in its current form, was built between 420 and 400 BC. Archaeologists are convinced that under its foundations lies an even more ancient temple, probably from the seventh century BC.