EmpireState
From Tardis Wiki, the free Doctor Who reference
The Empire State was a tower named after the Empire State Building on Earth. It reached from half a mile underground to the upper part of the atmosphere of the moon it was situated on. The people who founded it manipulated the moon's orbit; once, it would have taken 2 years to get round all the six planets in its system it then just took over a week to do it. It became a famous trading post. (AUDIO: The Empire State)
