The Apollo Room (sala dell'Apollo; Salon d'Apollon).Built in the mid 15th century by pope Nicholas V (Pape Nicolas V; papst Nikolaus V. ) The name comes from the subject of the frescoes made in 1547 by Perin del Vaga. The marble fireplace built by Raffaello da Montelupo in 1540 dates from the time of pope Paul III.- The Castel Sant'Angelo (Castle of the Holy Angel; Chateau Saint-Ange; Die Engelsburg ) is a towering cylindrical building in Rome.- 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.