To the north of the villa's main entrance , which leads through the remnants of a triumphal arch into an elegant atrium (forecourt), is the villa's baths complex. Accessible via the palaestra , which has a splendid mosaic depicting a chariot race at the Circus Maximus in Rome (the room is also known as the Salone del Circo or Circus Room), is the octagonal frigidarium , where the radiating apses contained cold plunge pools, and a tepidarium , where you can now see the exposed brickwork and vents that allowed hot steam into the room.