Acropolis Museum, Athens

A modern glass museum at the foot of the Acropolis, built over excavated ancient streets that you can see through the glass floor. The top floor recreates the Parthenon's frieze at full size, lined up with the temple itself, visible through the windows; the missing pieces, held in the British Museum, are shown as plaster casts. The original Caryatids are here too.

Allow two to three hours. The café terrace has a great view of the Acropolis. It's open late on Fridays. Book online at busy times.