There are man caves and then there are super-rich man caves.

"Secret Lives of the Super Rich" got a tour of a mansion in Orange County, California, with a basement that had been turned into a 4,000-square-foot multimillion-dollar man cave. Smart-home wizard Jason Voorhees said the property's owner — who preferred to remain anonymous — is part of a poker group that plays at its members' homes. And having the winning poker room is as important as having the winning hand.

"There's become a little bit of a competition among the homeowners here to build the most amazing space for the poker game," he said.