A monument to the art of slicing people open.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Have a seat with the father of modern computing at this Manchester monument.

This unchanged Victorian park is rumored to have been the inspiration behind Peter Pan's Neverland.

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

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

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.