PennAccess: Vagelos Laboratories of the IAST, Roy and Diana Entrance Information: 3340 Smith Walk. Philadelphia. PA. 19104 1. The main entrance to the Vagelos Laboratories of the Institute for Advanced Science and Technology is level and is on the north side of the building. 2. The Vagelos Laboratories are connected to the 1973 Wing of the Chemistry Complex only on 2 nd ,3 rd ,4 th ,and 5 th floor, and can be entered through the main west entrance of this building (1973 Wing). Note: The eastern entrance to the Vagelos Laboratories includes a flight of stairs, and is not accessible. The first floor of Vagelos Laboratories is locked and for building occupants only. Elevator Information: • Elevators are located in the main entrance way on the left. Accessible Restrooms: • All restrooms are only accessible for building occupants. There is a men's and a women's restroom on every floor.