An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

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

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This roadside attraction looks like a flying saucer parked atop the tundra.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

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

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

Home to three historic ships from the age of Vikings.

An intricately carved Viking church overlooks a glistening fjord.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

A grassy pyramid named after a French battle.

The gargoyles and grotesques of the 21st century are here—22 emoji built into a new building in the Netherlands.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

This expansive bridge in the Canadian wilderness was originally just built for friends.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

A pub that is literally in the middle of nowhere, but continues to do business.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

The attic of a four-century-old canal house hides a clandestine church.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The history and future of cannabis.