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

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

The astonishing collection of an infamous criminologist.

These mysterious circular formations are actually remnants of 19th century gristmills.

A 200-year-old collection of medical paraphernalia in a historic house.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Home to 200 plaster casts of Scandinavian proboscises.

Swedish mice can dine at the Nuts of Life restaurant or take a date to the amousement park.

20-foot tall lamp mumbles Swedish to celebrate the holidays.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

Swedish skyscraper with a 90° twist.

This chimerical bridge/tunnel appears to dead end right into the sea.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

This ultra-modern wooden boardwalk turns the ocean into a swimming pool.

Four alabaster giants contemplate the tides on the shore of Denmark.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A collection of noses tucked inside an art museum reveals how times have changed.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

The only surviving piece of Copenhagen's 16th-century defensive wall.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.