Stock photography, photos: Castel Sant'Angelo Stock photos of Castel Sant'Angelo in Rome was built in A.D. 135 as Emperor Hadrian's mausoleum. Later it was used as a fortress and a prison. Photograph: © Brian Heston Click for a larger image and more information Keywords associated with this stock photo: Castel Sant Angelo,Ponte Sant Angelo,Ponte Sant Angelo,Rome, italy,Western Europe,EU,Italia,Roma,castle,castillo,architechture,landmarks,buildings,tiber river,bridges