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

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

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

There must be a pun in this haystack somewhere...

This abandoned subway station can still be seen on regular commuter trips.

Michael Jackson got Bad and Crocodile Dundee walked on heads in this iconic Brooklyn subway station.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

An artist's mausoleum with a haunting echo.

Home to three historic ships from the age of Vikings.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

Ancient serpentine sacrifice holder that has stood the test of time.

1513 Turkish world map, full of European state secrets and snarky commentary.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A marvel of Byzantine engineering under the streets of Istanbul.

Museum dedicated to the terror regimes of Hungary.