ARCHAEOLOGICAL EXPLORATIONS IN SERDICA (Konstantin Shalganov – director@sofiahistorymuseum.bg) The site was situated to the west of the eastern fortification gate of Serdica. Part of a room of the 17th – 18th century was explored. Part of a domus with a peristyle was discovered. The court was paved with slabs, 20 cm thick. The stylobates from the south and the west were explored. They were 30 cm high, built of ashlars with a maximum size 1.92 m by 0.53 m. There were porches behind the stylobates. Three rectangular brick columns were discovered on the southern stylobate. The intercolumnar space was 1.84 m. Two corridors, parallel to the court, were explored from the west and the south. The corridors were open towards the court and were 2.70 m wide and 9.40 m long (the southern corridor) and 10.20 m long (the western corridor). The floors of the corridors were 7 cm thick in opus signinum. Parts of the rooms of the domus, constructed of bricks bonded with mortar, were discovered behind the porches. Fragments from floor mosaics were found. Coins of Constans minted n AD 337 – 341 and of Leo I the Thracian were found. The domus dated to the 4th – 6th centuries AD.