Current buildings:
Derelict Laboratory: http://imgur.com/a/ccGOt special notes: The lab is meant to spawn in the jungle biome. It has 3 rooms along the hallway. The first is a small habitat pool where water fossil pokemon should spawn (preferably only 1 as to not make it easy to get all the fossil pokemon). I set it to omanyte with a rare chance for omastar. the second room has 6 fossil revival machines. The third one has a destroyed cloning tank, and a giant hole in the wall where mewtwo escaped from. there is a ditto spawner in this room. Because of all the complex machinery and computers that would be needed in this building it also has a porygon spawner in the hallway that has a rare chance for porygon2. I would set this building to be fairly rare.
Battletower: http://imgur.com/a/NpmCz Meant to spawn in the plains biome, and maybe at a rate of 1 per biome (if its even possible to set it like that), the battle tower is fairly straight forward. as a note all trainers in it should be set to green bosses, and the last set to a blue boss (didn't place them because of the whole trainer despawning glitch). I originally set it so you can challenge the tower once a day, and that each time you beat it you get 1 master ball but the reward could definitely be tweaked.