The Grand Sanatorium
From The Fifth City Wiki
It will be a splendid building once completed: more like a palace of marble than any sanatorium I have seen... My understanding is that the colonists whose decay is too advanced to permit speech or movement – but who still "live" – are to be relocated within (I had almost written "interred"). Some mysteries remain, however...[1]
The Grand Sanatorium is a large building on the outskirts of the Tomb-Colony of Venderbight. It is under constant construction, it seems, and requires an extraordinary amount of imported marble. Whoever pays for these expenses is unknown, but they seem only fair, given that this is the place the most fragile colonists spend their last days.