A bit of retro transportation flair preserved in the world's largest department store.

Lie in a hammock where George Washington stood.

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

Mysterious 500-year-old tapestries depict a unicorn hunt.

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

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

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

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Once the home of a hermetic monk, this cave now houses a small church.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

Unfinished monument to peace between Turkey and Armenia, long divided by a dispute over genocide.

A fountain standing as a testament to a doomed alliance.

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

The most metal church of all time was built in record time because of an international, pious pissing contest.

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

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

An ancient church on a tiny island covered in stone bible stories has controversially been turned into a museum.

A meow-velous tribute to a beloved street cat, made famous on the internet.

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