For centuries, humans have lived underground. Today, that ancient practice is under dire threat—even as cave life makes more ...

Empty beaches, still streets, sleeping children—photographers capture a world quieted by coronavirus.

Trailer: Investigate secret underground markets in season five of Nat Geo's Emmy Award-winning series, "Trafficked with ...

Twice a day, sections of the River Thames’s shores are exposed by the receding tide, allowing a growing number of mudlarks like Elaine Duigenan to hunt through the mud for treasure.

Head off on a road trip along one of Albania’s most scenic stretches of coast, driving to hilltop villages and beaches that ...