Archiepiscopal chapel is one of the oldest churches of Ravenna, built in the late 5th – early 6th century by the Emperor Theodoric on the ground floor of the Episcopal Palace. This is the smallest of the famous buildings of Ravenna, decorated with mosaics. Dedicated to the Apostle Andrew, in 1996, the year the chapel was inscribed on the UNESCO world Cultural Heritage site by UNESCO.

Archiepiscopal chapel has the shape of a Greek cross, East end of which ends in an apse. In front of the entrance is a rectangular vestibule arch are decorated with mosaic white lilies, roses and colorful birds. Also mosaic adorns the lunette above the entrance to the chapel – here you can see the young Christ the warrior in Roman armor. In the apse survived another mosaic with the image of a cross on a background of the starry sky. On the same arch painted the monogram of Christ and the symbols of the evangelists. It is believed that such frequent depiction of Christ speaks to the customer's chapel to emphasize the divine nature of Jesus, which was rejected by the Goths Arian.

To have survived, not all of the original mosaics – some of them in the 16th century was covered with tempera paint Luke longs. In 1914, the year the chapel was restored, modifying the entrance. Today, inside it you can see the silver cross local Archbishop of Agnellus with medallions of the 6th and 16th centuries.

Archiepiscopal chapel is the only surviving early Christian private chapel in Europe.