New New York



New New York was one of the main cities of New Earth and a recreation of New York City on old Earth. It had a Duke, a police force (New New York Police Department), a nearby hospital run by the Sisters of Plenitude, not physically in the city, and a population of at least 10 million. The Doctor jokingly referred it should be called New New New New New New New New New New New New New New New New York, pointing out that it was the 15th New New York to be constructed. (DW: New Earth)

History
It was founded as a city state after Earth was destroyed by Sol expanding, so most of the Human population moved there. (DW: New Earth)

However, life became harsh for the population, which mood-sellers selling mood drugs setting up shops in the Undercity - the dark slums, far below the upper levels of the city. Eventually, in the year 5,000,000,029, a new drug, called "Bliss", was created, and the Senate in the Upper City became addicted to it, so a virus evolved which killed everything, eventually including itself. To protect the inhabitants of the city, the Motorway was created and sustained by the Face of Boe, an endless loop where cars would be trapped forever, being cleared out by the Macra who were living deep below on the surface of the planet and feeding on the endless fumes emitted from the cars.

Eventually, 24 years later in the year 5,000,000,053, the Doctor visited the city again, and managed to save the people in the Motorway by opening it and letting all the cars fly out through the top to recolonise the planet. (DW: Gridlock)