PHILIPPOPOLIS (Maya Martinova – maya_martinova@abv.bg) Graves built of bricks bonded with mortar were explored in the western necropolis of Philippopolis. Grave No. 1 was covered with a stone slab. Its interior was plastered with mortar and its floor was paved with bricks. There were small square niches in its long southern and short eastern walls. No skeletal remains or grave goods were found. Grave No. 2 adjoined the eastern wall of grave No. 1. It was destroyed. The interior of the grave was plastered with mortar and its floor was paved with bricks. A semicircular wall built of roughly-cut stones bonded with mortar was explored. It belonged to a structure that was 14.20 m in diameter. The graves dated to the 2nd – beginning of the 3rd century AD. Two walls built of roughly-cut stones bonded with mortar were explored. They belonged to the foundations of the aqueduct of Philippopolis.