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

Located in an old church, this brewery produces a different kind of holy water.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

A curious collection dedicated to human and animal anatomy and pathology.

Museum preserving torture methods from the past.

A floating cat sanctuary on an Amsterdam canal.

The last of Amsterdam's original sea level markers remaining in place.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

The world's only museum devoted to the wonders of fluorescence.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

This cairn marks the only place where Central European Time, Eastern European Time, and Further-eastern European Time meet.

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

This isolated island is often capped by its own fluffy cloud.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

A swath of France so devastated by war it is still forbidden to go there.

The deepest hole drilled in the name of science, where evidence of Precambrian life was found.

This legendary dessert was served to Nobel laureates for decades.

Pop culture has helped to keep this iconic British building from being destroyed.