I've been in an abandoned church like 2 months ago. Someone lit it on fire last summer though so it was really sketchy, the floors were loose and you could have fallen into the basement. Philadelphia State Hospital (byberry) was like a 15 minute walk from my house. It was a huge abandoned mental hospital with like 10 buildings. People used to fly here from all over to go in it, but it got knocked down last year and i never got to go in it. Stuff like that is wild.