Tower of the Winds, Athens

The recently restored Tower of the Winds in the Roman Agora of Athens is an octagonal marble clock tower. It features a combination of sundials, a water clock, and a wind vane and is reputed to have been built by Andronicus of Cyrrhus around 50 BC. However, it might date to as early as the second century BC, predating the rest of the agora.

Erechtheion on the Acropolis of Athens

The Erechtheion on the north side of the Acropolis of Athens,  which was dedicated to Athena and Poseidon. It is best known for its Caryatid porch, although the six figures now on the site are facsimiles. One of the originals was removed by Lord Elgin and forms part of the collection of Elgin Marbles controversially retained by the British Museum. The other five are in the nearby Acropolis Museum.