Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Macabre astrological automaton clock dating to the late 1400s.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

The dome-shaped reservoir of this old water tower produces unique acoustic effects.

The world's first and only escalator for lazy bicycles and their daunted riders.

A collection of collections ranging from dentistry to minerals.

An abstract monument to a symphonic composer.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

An alien church provides much needed silence in the midst of a Finland shopping center.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

A subterranean house of worship carved right out of the bedrock.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

Medicinal spa created with the discharge from a geothermal energy plant.

This elegant arc of a waterfall marks a religious turning point.

Tens of thousands of tiny bottles stuffed with various items.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

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

Sweden's oldest animated sign is still lighting up the skyline today.

A man has revenged his true love's betrayal through tears and stone genitalia.

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

It houses the remains of a 17th-century version of the Titanic.

Norway's chilly all ice-instrument festival.