House of Theseus is a Roman villa built in the second half of the 2nd century AD over the ruins of earlier houses of the Hellenistic and early Roman periods. It was in use until the 7th century AD. The villa's large size, it consisted of more than 100 rooms, suggests that the building was the residence of the governor of Cyprus.
Many of the rooms and three of the four porticos around the central court are covered with mosaic floors with geometric motifs. Three rooms in the south wing of the building are embellished with mosaic floors with human representations, all belonging to different phases. The oldest one is the mosaic representing Theseus and the Minotaur, dating to the very end of the 3rd or beginning of the 4th century A.D. with obvious later restorations, probably made after the earthquakes of the middle of the 4th century. At the end of the 4th century A.D. a new mosaic depicting Poseidon and Amphitrite was added to a room, which probably served as a bedroom. Finally, at the beginning of the 5th century, a mosaic floor was laid in the reception room, of which only a part is preserved today and depicts Achilles´ first bath.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.