Mausoleum of Hadrian also known as Castel Sant'Angelo beside Tiber River, Rome, Latium, Italy, Europe

also architecture as attraction attractions bastion bastions beside bridge bridges building buildings capital capitals castel castle castles cities city day daylight daytime during europe european exterior exteriors famous fortification fortifications fortress fortresses hadrian italian italy known latium mausoleum nobody of outdoor photo photos renowned river rome santangelo seeing shot shots sight sights site sites south southern stronghold strongholds the tiber tourism tourist touristic touristical touristically touristy town towns well well known worth