In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Steadily reminding Czechia of its past.

Macabre astrological automaton clock dating to the late 1400s.

The king of U.S. high points towers over every other peak on the continent.

A trading post in the North Pole where children send letters.

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

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

A church of bones, decorated with 40,000 human skeletons.

A giant Troll lurks under one of Seattle's oldest bridges.

A walk through the historic city center, under the streets of Seattle.