On the right bank of the Tiber stands a monument that began as a tomb for emperors and ended as a papal stronghold. The Mausoleum Hadriani was built between 134 and 139 CE as an imperial burial place, its cylindrical mass once clad in marble and topped with a crowning statue. For nearly a century it received the ashes of emperors, from its founder through to Caracalla in 217 CE. Then the tomb’s afterlife began. By 401 it had been turned into a fortress, incorporated into the Aurelianic walls. When Alaric’s Goths sacked Rome in 410, the mausoleum was looted and its urns scattered. Procopius records the destruction of its bronze statuary in 537. Later centuries saw it become a papal fortress, linked to St. Peter’s by the fortified Passetto di Borgo. Today, as Castel Sant’Angelo, it is a layered palimpsest of Roman ambition, military necessity, and medieval power, a tomb that simply refused to stay dead.
Description via source. Coordinates and heritage data from the Atika atlas.
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