The East thermae of Philippopolis were found under the building of present day Yoakim Gruev School. They occupy an area of 2,500 square meters. They were constructed on the foundations of an old ancient building.
The plan of the building clearly presents the implementation of the basic functional organization of the buildings of this type. The main premises of the thermae were oriented to the South - the direction with the longest sunshine. The heating system of the baths was made of clay pipes.
The floors were lavishly decorated with mosaics, mainly with floral and geometrical motifs.
The East Thermae functioned until the end of the 4th century.
