From outward appearances, you wouldn't expect to find a swamp inside this building....
Imtrex Exterior by
Ground State Photos, on Flickr
Inside was another story though.
It was even complete with bullfrog tadpoles swimming about.
I tried hopping from debris to debris like some like pathetic urbex version of playing Frogger,
but in the end had to give up on getting any deeper into this place.
Imtrex Interior by
Ground State Photos, on Flickr
How about a floor hole that looks down through TWO levels, not just one.