The longest and widest floating bridge in the world.

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

One of downtown Berlin's last reminders of its Communist past.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A fascinating insight into daily life in the Eastern Bloc.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

A miniature model of the iconic Stockholm department store.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's deepest subway station is also a stunning ecological wonder.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Legend has it this spring formed at the spot where a medieval Swedish king was killed.

A large collection of ancient runestones decorates this university courtyard.

A nightly tradition fills the streets of Flogsta with a collective scream.

Uppsala's adorable feline sign celebrates a popular children's book set in the Swedish city.

A replica of the beloved character's house, modeled after the author's own drawings.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.