I designed this model after a request by a fan of the Babylon 5 movie.
Babylon 5 is a fictional space station and the primary setting in the
television series Babylon 5. Its design is a variation of an O'Neill
cylinder.
Babylon 5 was designed as the "last, best hope for peace". It was the
last of five stations to be built, with its predecessors either being
destroyed by terrorists, or, in the case of Babylon 4, vanishing without
a trace. The station is home to 250,000, including about 100,000 humans
and 2,000 EarthForce personnel, and includes areas for business,
residences and recreation.