Some people have the monetary luxury to prepare for the "just-in-case." While most of us have a supply of candlesticks and matches, and maybe even bottled water and some canned food, that's about as prepared as we come.
These millionaires, however, have entire secret homes hidden underground...just in case. Atlas Survival Shelters is a company that builds luxury underground homes for those who can afford it. When you actually see the inside, you won't believe how comfortable underground living could be. Let's take a peek, shall we?