Graduate students used to live in the tower of the Hall of Graduate Studies. Now that the building has been renovated to be the Humanities Quadrangle, the tower (now known as Swensen Tower) has a new purpose: floors 7 through 13 are dedicated study space for graduate students. The only trouble is that undergrads have discovered the space and are invading the grad students’ turf; politely worded signs haven’t had much impact.