Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

The oldest inn in England served brew to the crusaders.