The world’s largest Masonic temple was saved by the White Stripes.

World's most expensive home.

This peaceful Sikh gurudwara serves around 50,000 free meals every day within its gilded walls.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

This might just be the TARDIS of bookstores.

Pennsylvanian mass grave and possibly mass murder.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A preserved college lock-up that recalls a clubhouse approach to discipline.

A shrine contains nearly 200 statues of the Buddhist deity Jizo, dressed in bibs by parents who have lost a child.

Once a black market electronics marketplace, now an otaku shopper's paradise.

When the rain falls, this drain system turns into a musical instrument.

In the early 1800s, surgery was also a show.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Tens of thousands of tiny bottles stuffed with various items.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

This castle-like building in Manhattan helped destigmatize cancer in the 19th century.

This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.