The second largest bath complex in Roman antiquity was Terme di Caracalla. This lavish social center was an enormous 50 acres and could accommodate up to 1,600 bathers. Surprisingly, it was open to all classes of citizens and free. The Baths of Caracalla was commissioned by Septimius Severus, emperor of the Roman Empire from 193 to 211. The opening occurred in 216 AD during the reign of his son, Emperor Caracalla (211 – 217) and named after him. The facilities remained popular for over 300 years until destroyed in 537 during an attack by the Ostrogoths. Today, the Baths of Caracalla are in ruins yet are a fascinating place to tour.