The Cathedral of Learning on Pitt's campus... not the best picture, but from a distance it is very phallic!
For drunk college kids all around the area, if you can see the Cathedral, you can eventually find your way home!
ETA:
the building on the very right, have no idea what it's called, but it looks like a giant pink tampon, even moreso in person. Could also be called phallic. It's in Winston-Salem, NC