The Palace of Theoderic is the only surviving architectural testimony of the 8th century A.D. in Ravenna. On the first floor of the palace, a selection of floor mosaics belonging to what was the most remarkable discovery of the early 20th century in the surrounding area is visible: the ancient palatial area of the imperial city. Today, the portion of the ancient palatial area of the imperial city identified as the narthex and facade of the church of San Salvatore Ad Calchis (8th century A.D.) is still visible, with the foundations of the main body also preserved. Throughout the 20th century, thanks to the restoration work carried out by Corrado Ricci, the first superintendent of Italy, today the structure, particularly the facade consisting of a double wall, is once again legible in its original appearance: on the ground floor with the portal and two pairs of arches, and on the upper floor the imposing niche with the bifora flanked by two symmetrical series of blind arches. During the visit, visitors can admire fragments of opus sectile pavements made of polychrome marbles (1st-2nd century A.D.) from the representative rooms of the palatium (apse hall and triconch), fragments of figured mosaic floors (5th century A.D.) from the corridors surrounding the peristyle, mainly depicting scenes of circus games, and floor fragments (6th century and Theoderic age) decorated with geometric, phytomorphic, or floral motifs that, having remained in use longer even after the abandonment of the palace and the dissolution of the Exarchate, survive the subsequent decline in the executive quality of the mosaic craftsmen of Ravenna in the 7th century.