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

The quintessential Japanese rock garden has existed for more than 500 years.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

Steinbeck's old stomping grounds, immortalized in Cannery Row.

Gustave Eiffel's masterpiece until the Eiffel Tower was built.

The easternmost point of Hawai'i plays a prominent role in local legends and is home to a lighthouse that survived a lava flow.

Hawaii’s largest cemetery rests inside an extinct volcano crater.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The 10,000 Torii shrine.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

The world's longest continuously running show has played at this small West End theater since 1974.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

This automated sculpture of two men peeing will spell out text messages with their micturition.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

Countless grotesque faces stare out from this eerie Prague art wall.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Some of the saint's blood and bones are said to reside in Dublin.