Bimaristan

Bimastiran - meaning "sick place" - was the name of one of the oldest hospitals on Earth, in Aleppo, 1380, according to the Thirteenth Doctor. It hosted sick humans, especially suffering from mental health. It included a courtyard.

It was targeted by the immortals Zellin and Rakaya to feed the latter with the nightmares of its inmates, who where all abducted, expect for Tahira. (TV: Can You Hear Me?)