The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Peek through the gates at this oasis from the city, full of Old English charm.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Underground hospital complex constructed by slave laborers during the German occupation of the Channel Islands.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

A quirky "castle" formerly belonging to a famous British inventor.

New York City's only preserved family home from the 19th century.

An ethereal glowing blue ocean cave in Croatia.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

On the top floor of an upscale department store stands a lavish restaurant housed in a replica of a luxury French dining car.

A Manhattan office building is home to the world's largest chess board.

A perfectly running 230-year-old silver automaton and music box.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

Take in a rare, face-to-face glimpse of Lady Liberty at this tucked away Red Hook park.

An ancient hotspot for spotting schools of fish.

For those with no fear of heights: a skywalk 4,700 feet up on a Chinese mountain.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

These medieval tunnels provided water to the city above through centuries of civil war and plague.