Athens was the capital of Greece and its largest city.
The Tenth Doctor and June visited Greece in 1500 BC, where Athens would later be built. They later visited the city near the height of its power. (PROSE: The Slitheen Excursion)
Athens and Sparta were at war for many years during the 5th century. Their conflict ended in 421 BC. (AUDIO: The Oracle of Delphi, Mask of Tragedy) However, they were at war again by 410 BC. (COMIC: The Chains of Olympus)
In 421 BC, the Seventh Doctor, Ace and Hector Thomas encountered Aristophanes in Athens. (AUDIO: Mask of Tragedy)
The Sixth Doctor claimed to have at some point visited the Parthenon in Athens, while it was being built. (AUDIO: The Spectre of Lanyon Moor)
The Eleventh Doctor, Amy Pond and Rory Williams visited Athens. (COMIC: The Chains of Olympus) The Fourth Doctor took Leela to Athens to see a play by Aristophanes. (PROSE: The Brain of Socrates)
In 1966, the city was a destination of the villainous Chameleon Tours. (TV: The Faceless Ones)
In the early 21st century, Baskerville predicted that Athens would be devastated by a tidal wave, and planted a bomb to ensure that this would happen. (PROSE: Trading Futures)