The small theater of Amvrakia was built in the late 4th century BCE. The orchestra, where the chorus performed, is a perfect circle, 6.70 meters in diameter. The cavea, where the audience sat, has five rows of seats. Unlike a typical ancient Greek theater, there are no chairs for the officials in the first row, and the cavea was not constructed on bedrock, but on the slope of an earth fill situated upon the foundations of buildings and a bath house. The latter was adorned with impressive mosaic floors, made of white and black pebbles that depict winged children (putti), swans, and dolphins. The mosaics are at the Archaeological Museum of Arta.