Mafia

Mafia is one of my favorite PC games ever. The player plays the part of a young hood who must infiltrate a mob gang for the police; the atmosphere of a large American city of the 1930s (something between New-York and Chicago) is incredible, and the player can move freely in most of the 3D city.

During a mission, the player stops by a beautiful theater, the Twister, which seems inspired by the Chicago. But it is impossible to get inside.