![]() Castel
Sant'Angelo 
      The Mausoleum of Hadrian, / Castel Sant'Angelo ( Castle of the Holy Angel ), is a towering cylindrical building in Parco Adriano. It was 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 but is now a museum. The Castel was once the tallest building in Rome. It was constructed on the right bank of the Tiber between 123 AD and 139 AD  | 
      
Castel
Saint Angelo 
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![]() Castel
Saint Angelo 
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![]() Saint
Peter's Basilica  
      in Vatican City from Castel Saint Angelo  | 
      
![]() Castel
Saint Angelo 
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![]() Bridge of
Angels   
      across the River Tiber to Castel Saint Angelo  |