Panathenaic Stadium

The Panathenaic Stadium dates back to the 4th century B.C. and was the site of the first modern Olympic games in 1896 and remains the starting point of the Olympic flame torch relay. Made entirely of white marble, it's an impressive sight that's earned it the nickname Kallimarmaro or "beautiful marble". There are even a couple of hours in the morning designated for morning jogs when you run in the footsteps of former Olympians. Take a stroll up to Ardittos Hill for a panoramic view of the stadium. Tickets are required to enter the stadium, which includes a free audio guide. – Tripadvisor