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             The Mausoleum of Hadrian, usually known as the Castel Sant'Angelo, 
              is a towering cylindrical building in Rome. It was initially commissioned 
              by the Roman Emperor Hadrian as a mausoleum for himself and his 
              family. The building was later used by the popes as a fortress and 
              castle, and is now a museum. 
            Much of the tomb contents and decoration has been lost since the 
              building's conversion into a military fortress in 401 and inclusion 
              by Flavius Augustus Honorius in the Aurelian Walls. 
            The Papal state used Sant'Angelo as a prison. Giordano Bruno was 
              imprisoned there for six years. Executions were carried out by the 
              Catholic Church in the small interior square. As a prison, it was 
              also the setting for the third act of Giacomo Puccini's Tosca from 
              whose ramparts the eponymous heroine of the opera leaps to her death.            |