Lucian of Samosata Hippias 6

[6] On leaving this hall, you come into another which is slightly warmed instead of meeting you at once with fierce heat; it is oblong, and has an apse at each side. ¹ Next it, on the right, is a very bright hall, nicely fitted up for massage, which has on each side an entrance decorated with Phrygian marble, and receives those who come in from the exercising-floor. Then near this is another hall, the most beautiful in the world, in which one can sit or stand with comfort, linger without danger and stroll about with profit. It also is refulgent with Phrygian marble clear to the roof. Next, comes the hot corridor, faced with Numidian marble. The hall beyond it is very beautiful, full of abundant light and aglow with colour like that of purple hangings. ² It contains three hot tubs.