Theatre of Epidauros

This is the main site dedicated to Asklepius, dating the the 4th century BCE. It was important enough at the time to rival Olympia and Delphi. This, like the other important sites has a main temple of the primary god worshipped plus a number of smaller temples to other gods. Add in all the supporting facilities, and this is a huge site.
Asclepius is a god of healing, and people traveled great distances. They used water from the holy well (not the springs, see below), and then slept in the temple awaiting a healing dream from the god.
Today, the site is probably best known for its theater in the 1st picture. Notice both the entry gate and the guys climbing the stairs. You can get a sense of scale of the place.
The 2nd picture looks at the Temple of Asclepius itself. (The columns on the scaffolding are in the rear of the temple.) The 3rd picture is the stadium. Athletics and theater were generally part of most cultic practices in ancient Greece.
The 4th picture is the ruins of one of the large buildings providing hospitality for pilgrims. The 5th picture is one of the fountains on site fed by a spring up the hill and piped into the temple area.
The last picture is the inside of the small museum exhibiting archaeological finds from the site. Most are replicas as the originals are in Athens.Read more