A Russian compound that is home to the Gagarin Cosmonaut Training Centre. It is located in the countryside northeast of Moscow. Cosmonauts and their families live at Star City, and NASA has its own facilities and housing for its astronauts who train there. Star City was originally a highly restricted military base, and military sentries still guard its entrance. Since the fall of communism and the collapse of the USSR in 1991, however, there are conducted tours of the centre, and members of the public are able to experience mock astronaut training in the simulators.