Katakolon is the gateway to Olympia about 30 minutes away. Olympia was the site of the first Olympic Games in 776 BC and still serves as the inspiration for the modern Olympics. The eternal flame of Altis, which dominates the site, is the source of the flaming torch carried to the current games.

Structures here include the Temple of Zeus, the Temple of Apollo, Nero's Villa and the Altis Sanctuary. The International Olympic Academy is headquartered in Olympia, and there is a Museum of the Olympic Games.