The imposing Castel Sant’Angelo (Castel of the Holy Angel) is the only building that has followed the development of the city of Rome for about 2000 years, the other Roman monuments have had different destinations, some were reduced to ruins and others were used as quarries to collect materials and recycle them into new constructions.
For centuries, Castel Sant’Angelo has undergone several transformations, both from an architectural and structural point of view depending on its use: it was built in the year 123 AD as a mausoleum for e Emperor Hadrian and his family. However, Hadrian died in the year 138 AD, before the construction of the Mausoleum was completed, a year later, Antoninus Pius dedicated the tomb to him and transferred the remains of Hadrian and his wife Sabina to this fantastic monument. In 403 lost its original function and became a military fortress to defend Rome and at the beginning of the eleventh century happened to be the state prison. Years later, in the fourteenth century, after several changes of owners among the Roman noble families, Castel Sant’Angelo tied its luck to that of the popes.