Can humans survive without the sun? Apparently, they can, in fact, they already did. The idea of living completely underground seems like a compelling Hollywood narrative, but for others, subterranean ...

Naturally, in a place named Crystal City, you're bound to find a few hidden gems. This small Missouri town of about 4,700 residents is home to Crystal City Underground, a one-of-a-kind experience in a ...

Did you know the United States has a fascination with building downward? This video explores ten fascinating underground ...