The Museum of Mosaics is located in the town of Devnya. This museum is “in situ”, and is housed in a building specially made for the protection of the items discovered there. In 1976, a large Roman building with beautiful mosaics was unearthed there during an archaeological excavation. The museum is situated one part of the foundations of the ancient building, which is believed to be from the reign of Emperor Constantine I at the end of the 3rd or early 4th century. The building is a large urban villa, and occupied an entire neighborhood in the ancient Roman city Marcianopolis, which was one of the largest Roman cities in this part of the empire. Typical of the houses of this era, it features a courtyard surrounded by residential buildings and colonnades on three sides. Five of the rooms and the entrance are covered with colorful mosaics that are among the best examples of mosaics in the Roman era found in Bulgaria. Three of the mosaics in the museum are still in the rooms that they were found in, and the other two were moved onto a new support base after a partial restoration. The mosaics are made of small pebbles, cubes of marble, limestone, clay and 16 different colors of glass. The museum is an enriching place to visit and discover more about this ancient art, represented here in all its glory and beauty.