Model of the Mausoleum of Hadrian as it was around 2000 years ago. (Maquette / reconstitution du mausol閑 d'Hadrien; Rekonstruktionsversuch des Mausoleums von Hadrian )on display in the atrium of Castel Sant'Angelo (Castle of the Holy Angel; Chateau Saint-Ange; Die Engelsburg ).- Construction: 123-139 AD; commissioned by the Roman Emperor Hadrian as a mausoleum for himself and his family.(Mausoleum of Hadrian; Mausol閑 d'Hadrien; Mausoleum des Kaisers Hadrian; Mausoleo di Adriano). The building was later used by the popes as a fortress and castle; and is now a museum. (Museo Nazionale di Castel Sant'Angelo)Rome; Italy. 2020.