The world's longest cave in sandstone was recently discovered in ... way through this claustrophobia-inducing hole in the rock wall, you need to wear caving suits so you can crawl on your belly ...

A gangster’s safe haven, a speakeasy, a mushroom farm and a discreet underground nightclub: the Wabasha Street Caves have filled many roles over the last century, each with its own haunting history ...

Scott Lomax uncovered his 152nd new cave in the city in just 12 months last week. Nottingham is built on soft sandstone making it easier to dig into, but strong enough for structural stability.