It was originally part of a "terrible lizards" collection at the 1964 New York World’s Fair.

A Bibliophile's Dream.

This shop for all your super spy needs hides an educational secret.

Years of archaeology, just chillin' by the water cooler.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

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

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

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

César Baldaccini's iconic sculpture of a 40-foot thumb stands tall in La Défense.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

France's most famous cemetery, with some of its most curious tombs.

The celebrated eyesore created by starry-eyed sweethearts.

The mosaic floor of a 4th-century synagogue features a pagan zodiac wheel alongside traditional images of a Torah ark and menorahs.

Built by a king and rebuilt by an emperor, this aqueduct transported water for 1,200 years to this ancient Mediterranean hub.

An ancient underground cultic temple where sunlight penetrates on the summer solstice.

As the Dead Sea continues to deplete, massive sinkholes open along its banks.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

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

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.