Penn Tower, a grim modernist edifice that opened in 1975 on Convention Avenue as a Hilton Hotel morphed into an office building for HUP. This photo from 2013 shows Penn Tower between the University Museum and the Perelman Center for Advanced Medicine, with Convention Avenue separating the erstwhile hotel from the Perelman Center. The University demolished Penn Tower in 2015–16 to clear the site for construction of Penn Medicine’s Pavilion.