O'Neill classrooms 245-257 are on the second level of O'Neill, to the south of the atrium. There are two ways to enter:
1. Enter from the atrium stairway that runs through the center of the building, either from the 3rd floor (O'Neill Quad level) or from the 1st floor (adjacent to Maloney Hall's 4th floor entrance).

2. Enter from O'Neill Library's 2nd floor atrium entrance. This gives you the option of taking the elevator in O'Neill. This route is wheelchair accessible.
