The Parthenon and the temple of Athena, is a UNESCO World Heritage Site and the major attraction of Athens. The Erechtheion displays the statues of the female Caryatids, though the original statues have been replaced by copies because of air pollution; the originals are in the new Museum. On the southern slopes of the Acropolis lies the Odeon of Herodes Atticus, a Roman theatre with room for as many as 5,000 spectators. It is used during the annual Athens Festival for world-class ballet and music performances. The Theatre of Dionysus lies beside Herodes Atticus, and almost all the tragedies and comedies of Ancient Greece were written for this theatre.

For a nice walk or picnic a bit outside the busy streets and squares of central Athens, you can head to the Philopappos Hill. It offers a great view over the city and maybe the best view of the Acropolis, just far enough to embrace it all while avoiding the tourists crowd and close enough to see the beauty of its architecture.

The Athens War Museum is run by the Greek Armed Forces. The exhibitions cover the history of war in all ages, from Mycenaean conflicts all the way to the present day. Great displays of battle grounds, weapons, uniforms, heroic figures and personal items.

The Temple of Hephaestus is a well-preserved ancient Greek temple built in 450 BC, dedicated to the God Hephaestus, the protector of blacksmiths, craftsmen, artisans, sculptors, metals, metallurgy, fire and volcanoes. This may be one of the most well-preserved temples, not only in Greece, but in all of Europe.