Thermae Antoninianae

Plan J.B. Piranesi of the Thermae Antoninianae / Baths of Caracalla. Top
left the aqueduct (Aqua Antoniniana, branch of the Aqua Marcia) water
arrived (via nrs 43 and 44) supplying the 2 times 32 basins (nr 45) of the Baths