Explore the process of building a modern underground living room and swimming pool within an extravagant underground mansion.

Building an underground shelter in five days requires careful planning, efficient use of natural materials, and strong ...

Add Yahoo as a preferred source to see more of our stories on Google. If nuclear war is imminent, you should consider a DIY fallout bunker.Mirifada / Getty Images Fallout shelters can cost millions of ...

Any builders or people in the know here? How much does it cost to build a room underground vs. building equivalent room above ground? For example, a home theater or something. Assume we are building a ...

For millennia humankind has dug downward for shelter, security, and comfort. Born out of pure necessity, using nothing but the ever-present earth, humankind created architecture by subtraction. In ...