Back قلعة سانت أنجلو Arabic Müqəddəs Mələk qəsri Azerbaijani Замак Святога Анёла Byelorussian Сант Анджело Bulgarian Kastell Sant'Angelo Breton Castell de Sant'Angelo Catalan Andělský hrad Czech Engelsborg (Rom) Danish Engelsburg German Καστέλ Σαντ'Άντζελο Greek
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   Mausoleum of Hadrian Shown within Augustan Rome | |
 Click on the map for a fullscreen view | |
| Coordinates | 41°54′11″N 12°27′59″E / 41.9031°N 12.4663°E |
|---|---|
| Type | Mausoleum |
| History | |
| Builder | Hadrian |
| Founded | 123–139 AD |
The Mausoleum of Hadrian, more often known as Castel Sant'Angelo (pronounced [kaˈstɛl sanˈtandʒelo]; Italian for 'Castle of the Holy Angel'), is a towering rotunda (cylindrical building) in Parco Adriano, Rome, Italy. It was initially commissioned by the Roman Emperor Hadrian as a mausoleum for himself and his family. The popes later used the building as a fortress and castle, and it is now a museum. The structure was once the tallest building in Rome.