Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A museum dedicated to the history and exploration of both popular music and science fiction.

A wall of chewing gum moonlights as collective art.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This sculpture marks the spot where one of the greatest Roman rulers was proclaimed emperor.