The Nymphaeum ornamental fountain was constructed in 191AD, and dedicated to the Nymphs. Such fountains were common in Roman cities, and provided a refreshing focal point for the city. This fine example was originally embellished with marble facings on the lower level and painted plaster on the upper level, topped with a half-dome roof Water cascaded through 7 carved lions' heads into small basins on the sidewalk and overflowed from there through drains into the underground sewer system.