A mythically themed self-built sculpture park.

See the rare bloom of the "Queen of the Night" cactus at one of the world's largest succulent collections.

Vines grow up the metal bars in this public park created from an old machine factory.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

The steepest classic funicular in the world glides along a dizzying incline.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

"World machine" built by an untrained Austrian farmer.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

Double spiral staircases are not unheard of, but they are very rare.

Apartment complexes built into huge repurposed natural gas tanks.

Op-art architecture designed for happiness.

Macabre museum devoted to historical Viennese murders.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

The deepest metro station in the world.

When you've got to go, you've got to go.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

340-foot statue built to honour the Heroes of the Soviet Union.

Continental Europe's only museum devoted to salt and pepper shakers features more than 20,000 designs.