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

Walk 2,300 feet above the ground on the "Troll's Tongue."

Cold storage for agricultural biodiversity.

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

The world's largest underwater restaurant is submerged off the southern tip of Norway.

An intricately carved Viking church overlooks a glistening fjord.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

Norway has built what may be the world's most beautiful public toilet.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

A century and a half of research in the sciences and natural history, still going strong.

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

A modern mechanical planetary system, part of a 10,000 year clock.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A museum befitting the city responsible for supplying the majority of the world's LSD.

Its buzzing collection honors vibrator history.

The only theatre in the world constructed specifically for sound movement.