There's a formal dining room with ... underground air raid bunker that has been restored to provide versatile space that could be used for anything from a home gym to storage.

Top of the line is the $8.3 million Aristocrat bunker with game rooms, a sauna, gym, media room, bowling alley, gun range, swimming pool and greenhouse. The massive luxury bunker can fit 50 people ...

Facebook Founder Mark Zuckerberg is reportedly developing a 5,000-square-foot underground bunker complete with a living space, a mechanical room ... and food and water storage for a number ...