Uris Pool
Uris (A common contraction for Your Penis) Pool is Columbia's on-campus swimming pool, part of the Dodge Physical Fitness Center. Though it is accessed through the fitness center, it is actually located beneath Uris Hall. The pool is where Columbia College students are required to take the Swim Test.
Fun fact: If the entire mens swim team were to take all of their lives' piss (assume 1 gallon/day) and dump it in the pool, they would fill 94% of uris pool!