Watch the full journey of creating a stunning swimming pool with a hidden underground passage! 🏊‍♂️🌿 Using only natural ...

Behind a blue door in a narrow London passage lies a little-known network of tunnels deep underground, once home to British ...

When it comes to replacing the Tobin Bridge, Boston.com readers think sinking the whole shebang under the Mystic River is the ...

The medieval settlement included an inner city-citadel on a high rocky plateau, an outer city and unfortified suburbs.

The U.S. Environmental Protection Agency (EPA) has approved West Virginia’s application to obtain authorization and primacy regarding the issuance ...

But the primary reason to visit the caverns is to partake in one of the five underground ... hidden passages. Recent visitors particularly enjoyed the cavern tours, calling Natural Bridge Caverns ...

Earth is home to some truly bizarre and breathtaking landscapes — here are 20 that look straight out of an alien world.

Vermont can both grow housing and protect our natural resources. The state faces an array of complex challenges — from escalating housing and healthcare costs, to climate change-related flooding ...

From underground rivers to spiritual caverns, embark on an underground adventure with these 7 awe-inspiring caves in Asia.

While Trump’s schemes to impose tariffs on Chinese, Canadian, Mexican and European imports have been taken ...