FORTRESS.
A multi-tier building, with various floors for different things.
Bottom Floor: Fun deaths! A large pit w/ lava bottom.
Ground floor: Lots of room with space for builds and stupidly running around.
2nd Floor: Team DM paradise! Much like Spyglass, but with blocko size and more enclosed areas for intense shootouts.
3rd Floor: Exploration Central! A large room with a breakable glass ceiling. The real fun would come in the form of exploring the air conditiong ducts, that mysterious garbage can, and the creepy abandond desk...