Katagogion (hostel) at Epidaurus, 160 rooms, 5 822 m2, late 4th century BC.
The Katagogion provided accomodation to the numerous visitors of the Sanctuary, pilgrims, patients and their comapanions. The buildign has no communication between the two eastern and the two western units, so that it was possible to isolate parts of the building when the Sanctuary was less busy or for medical reasons (contagious diseases).
<a href="//commons.wikimedia.org/wiki/User:Zde" title="User:Zde">Zde</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>