America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

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

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

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

A mysterious shape catches the eye in this 16th-century painting.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A museum wholly devoted to juvenescence.

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.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

Not quite the menace it once was, this monster still has some chops.

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

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

The only rotating bar in New Orleans has been slowly spinning since 1949.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.