In a new find under five historic homes in the Iranian city of Abarkuh, archaeologists discovered an underground settlement ...

In this incredible 25-day project, we take on the challenge of constructing a fully functional underground house, complete with ... Arabia's $2 trillion megacity in the desert 'The knowledge ...

Coober Pedy is a small town in South Australia known as the “opal capital of the world.” Many of its residents live underground to escape the extreme heat of the desert, where temperatures can ...

Famous underground Las Vegas house to open to public — PHOTOS It’s one of Las Vegas’ most famous homes and one shrouded in mystery that few people have ever seen. It’s not the home of a ...