Neon Mile in Silverton. It is space themed, and has a few buildings, including three towers, one of which has a large rocket sculpture. There are also a lot of neons on these buildings, including the entrance, which has three arches and a red planet sculpture, which all adds to the futuristic look. The Nebula can be found on the north side of the boulevard, facing Troy and The London.
In Need for Speed: Carbon, the final cutscene after beating Darius takes place here.