Transcript for Underground Mansion on Sale for $50 Million
Outrageous that's one word -- to kind mansion now on the market and it can all be yours for a mere fifty million plus dollars. The thing that makes this place so unique. Almost all of bit. Is under ground. BBC Cecilia Vega took a tour of this private palace. Permanent -- your house -- ended their applause this whole milk and this isn't just. Any old Southern California mansion. Sure there are tennis courts swimming pools even at chapel. But that's normal stance comes stuff there is nothing normal about this place. -- -- -- -- -- -- -- -- -- -- -- Wouldn't confirm -- This is my -- -- to play a lot from secret passageway is above ground. That's pretty well to an entire world alone EC seafood importer John plaza bitch wanted -- really big house. And -- zoning laws wouldn't let him build up well John went down weighed down five stories below ground we're protein twenty -- program. They're like we're in another world. At the end of the -- two stories below ground well everyone needs her mom right. -- -- -- -- Really a a Westphal I. Don't even know what to say right now one kind of speechless this is all -- for pure gold. You don't -- -- mud that in these subterranean level of your error stop everybody. Among bacteria but what's underground mansion without a tennis court -- US open specification. -- Fifty feet below ground big enough to double as a ballroom he can withstand them pretty significant from the class. -- and a major party who would buy its -- very -- you like to see how much you have to. This -- -- 53 million you get nine bedrooms 25 bathrooms. And don't forget it homer. So I decided this is where I'm going to live from now on Good Morning America Cecilia Vega ABC news Rolling Hills, California.
This transcript has been automatically generated and may not be 100% accurate.