Greek Baths in ancient Olympia - Credit: Wikimedia Commons
The Greek Baths in ancient Olympia are the earliest baths in the sanctuary and they are situated on the west side, outside the sacred enclosure of the Altis, near the bank of the river Kladeos.Υπουργείο Πολιτισμού και Αθλητισμού: Ελληνικά λουτρά Ολυμπίας. They were constructed during the 5th century B.C. and continued to develop throughout their use. In the 2nd century A.D. they were used as the foundation for the construction of the Kladeos Baths. They are called Greek Baths in order to distinguish them from the baths of the Roman period at the same area. Read more on Wikipedia
Source: en.wikipedia.org