The crew moved to Philadelphia on June 9, where they shot at a defunct PECO Richmond power station, the University of Pennsylvania, Drexel University, the Eastern State Penitentiary, Laurel Hill Cemetery, Philadelphia City Hall, Rittenhouse Square, historic Chancellor Street (which represents a street near Place de la Concorde in Paris), and Wanamaker's. The production moved to Princeton University on June 22. Filming there angered some students at the University of Pennsylvania, believing Bay had chosen to reshoot scenes at Princeton and script Princeton's name in the film. One shot that was filmed in the University of Pennsylvania was the party scene, filmed at what students call "The Castle". "The Castle" is home to the prestigious Psi Upsilon Fraternity. However, neither the University of Pennsylvania nor Princeton gave Bay permission to be named in the film because of a scene that both institutions felt "did not represent the school" in which Sam's mother ingests marijuana-laced brownies. Bay scheduled a break for filming beginning on June 30, turning his attention to animation and second unit scenes because of the potential guild strike. Shooting for the Shanghai battle later continued in Long Beach, California. In September, the crew shot at Holloman Air Force Base and White Sands Missile Range in New Mexico. The two locations were used for Qatar in Transformers and stood in for Egypt in this film. A scale model in Los Angeles was also used for some close-ups of the pyramids. Shooting at Tucson International Airport and the 309th Aerospace Maintenance and Regeneration Group's aircraft boneyard took place in October under the fake working title Prime Directive (a reference to Star Trek). Filming also took place at Camp Pendleton, Davis–Monthan Air Force Base, Imperial Beach, Naval Amphibious Base Coronado, Naval Base Point Loma and San Diego Bay. The first unit then shot for three days in Egypt at the Giza pyramid complex and Luxor. The shoot was highly secretive, but according to producer Lorenzo di Bonaventura, a crew of 150 Americans and "several dozen local Egyptians" ensured a "remarkably smooth" shoot. Bay earned the Egyptian government's approval to film at the pyramids by contacting Zahi Hawass, whom Bay said "put his arm around me and said, 'Don't hurt my pyramids. A camera crane was used at the location. Bay stated he found the climax of the first film to be weak, partly because it was shot across five different city