Explore the creation of unique underground structures, such as a blue swimming pool and an underground temple house, crafted entirely from scratch using primitive tools in the wild.

During heavy rainfall or extreme storms that produce an abundance of water, you’ll often hear weather reports warning of flooding. Streets can sometimes be flooded, but underground structures like ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. It sounds like the stuff of science fiction. In one European team ...