The 'pet name' for the LDS Church's giant new construct in downtown Salt Lake City, Utah. If comes from a play on the name of another building by the name of 'Tabernacle'; the 'mega' comes from, well, look at the pictures. It's roof spans the longest unsuspended distance in north america with the exception of the SuperDome (is that it's name? I'm not sure of thats the right one, correct me if I'm wrong). It has a freaking garden on top! 'Mega' is an accurate term. Sadly, the 'official' name is the 'LDS Conference Center'.. quite an unimaginative name for such an impressive building.