The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

The remains of Crystal Palace Great Exhibition of 1851.

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

Eighty million natural history specimens call this gargantuan museum home.

At just 51 feet and 10 inches long, it's the shortest street in England.

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

The site where two doves fell in love.

Walk upon the mementos of the dead in this Parisian courtyard paved with medieval tombstones.

The location of this small park was once the site of an infamous public morgue.

This demon atop the Notre-Dame de Paris looks utterly bored.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This modest marker near Notre Dame identifies the very center of Paris.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

A quarter mile off the coastal tip of Maine you'll find the "Beloved Island" of Franklin Delano Roosevelt.

The 32nd president's sprawling cottage sits on an island enclave jointly managed by the U.S. and Canada.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

Soaring over the Niagara Whirlpool since 1916.

This massive mall has hundreds of shops, an amusement park, and a history of deadly amusement attractions.