In ancient Rome, thermae and balneae were facilities for bathing. Thermae usually refers to the large imperial bath complexes, while balneae were smaller-scale facilities, public or private, that existed in great numbers throughout Rome.
Roman public baths in Bath, England. The entire structure above the level of the pillar bases is a later reconstruction.
Bulla Regia, inside the thermal baths
Mosaic bath sign from Sabratha, Libya, showing bathing sandals, three strigils, and the slogan SALVOM LAVISSE, "A bath is good for you"
Plan of the Old Baths (Forum Baths) at Pompeii
The gymnasium in Ancient Greece functioned as a training facility for competitors in public games. It was also a place for socializing and engaging in intellectual pursuits. The name comes from the Ancient Greek term gymnós, meaning "naked" or "nude". Only adult male citizens were allowed to use the gymnasia.
Gymnasium, Sardis
Pompeii gymnasium, from the top of the stadium wall
A hermaic sculpture of an old man, thought to be the master of a gymnasium. He held a long stick in his right hand. Ai Khanoum, Afghanistan, 2nd century BC.