The student pub at the University of Waterloo (Ontario, Canada). Almost buried underneath the Student Life Centre, the pub is named for its resemblance to a bomb shelter. Concrete walls and floors emphasize the effect, though the exterior wall opens onto a smallish excavated patio. The idea of partying in a underground bunker may seem great, but in reality the reflected sound is deafening, and the pub swelters in the summer.
The Bomb Shelter (or Bomber) is semi-famous for a few reasons, one of which is that it is the location for a key scene in the novel Microserfs by Douglas Coupland.
The University of Waterloo has a renowned Computer Science program that used to have a huge hire rate for Microsoft in Redmond. Bill Gates used to (perhaps still does) have a annual barbeque at his home for newly hired UW grads. Microsoft, Corel and a number of other large software companies have held open bar nights at the Bomb Shelter for graduating students.
Wednesday is the traditional "Bomber" night.
The patio was recently more than doubled in size, but a failure to secure a liquor licence for the expanded space has left the patio divided by a steel barrier.