Well, yeah I mean that much is plain but what I'm getting at is - since the weather here is perpetually as in, kinda warm if not a little stuffy, wouldn't this be the perfect little place for homeless folk to come and settle?

[ He says while gesturing to the sheer size and seemingly endless halls. ]

Think about it. Entrances could pop up anywhere, no end to the halls in sight, and anyone who would be coming to vacate them would be heard coming a mile away - if they find them at all. There's the lizards but, just stay away from them and you'd be dandy. Sounds like the perfect place.