Babylon

Babylon was a city in Mesopotamia on Earth.

It played an important role in human history. In the 16th century BC, the earliest recorded use of astrology on Earth took place in this city, at least according to Luke Smith. (TV: Secrets of the Stars)

Layout
The city consisted of huge walls, 100 feet high, consisting of huge bronze-plated bricks the colour of lapis lazuli. One entrance to the city was the Ishtar Gate. (AUDIO: Farewell, Great Macedon)

History
In 2000 BC, the Ninth Doctor and Ali stopped a Starman from destroying the city. (PROSE: The Beast of Babylon)

In 905 BC, the Eleventh Doctor and Amy Pond visited Babylon and stopped a Gryphon attack. (COMIC: In the Stars)

In the 6th century BC, Pythagoras learned from Persian magi in Babylon. (PROSE: The Pythagoras Problem)

In May 323 BC, the First Doctor and his companions Susan Foreman, Ian Chesterton and Barbara Wright met Alexander the Great in Babylon, ultimately being present for his death the following month. (AUDIO: Farewell, Great Macedon)

The Ikkaba visited Babylon and inspired its people to build pyramids. The People also visited the city, through a time pad, as did Bernice Summerfield. (PROSE: Walking to Babylon)

Iris Wildthyme and Panda once visited Babylon and were accused of stealing the tablets of destiny. Thanks to all the feathers on her hat, Iris was thought to be the goddess Siris. (PROSE: Wildthyme and the Wolf)

Undated events
At some point Babylon was ruled by King Nebuchadnezzar. (PROSE: Byzantium!)