Panathenaic Stadium - Athens

The Panathenaic Stadium or Panathinaiko (Greek: ??????????? ??????, also known as the Kallimarmaro (????????????, meaning the "beautifully marbled"),is the most ancient stadium in use in the world, is an athletic stadium in Athens that hosted the first modern Olympic Games in 1896. Reconstructed from the remains of an ancient Greek stadium, the Panathenaic is the only major stadium in the world built entirely of white marble (from Mount Penteli) and is one of the oldest in the world. (thank you wikipedia)