The tower is six stories tall, though the higher floors are not in use today because of fire hazard (there is only one narrow staircase granting access to these floors). The fourth floor contains the new heating and air-conditioning systems. The "tower" originally housed the art and music rooms, but since 1960 houses the broadcasting transmitter for WMTH 90.5 FM, the student-operated radio station. Following World War II and up into the late 1960s aviation classes were given with the use of a Link Trainer installed in the tower. The sixth floor also has a balcony on the outside from which there is a distant view, on some days, of the Chicago skyline.