Places jacobmunkhammar Wants to Go

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Venice's "Island of the Mad."

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

These magnificent 240-year-old machines are considered distant ancestors of the computer.

A rare, flower-shaped example of Brutalist architecture in Switzerland.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.

Museum of science fiction, utopias, and extraordinary journeys of the mind.

A historic observatory precariously perched at the "Top of Europe."

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

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

Home of the Large Hadron Collider and the birthplace of the World Wide Web.

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

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

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

Where the lovelorn find a home for their sentimental keepsakes.

Caves famous for the dragon-slaying saint who lived there.

The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

The avant-garde design was able to bypass strict Soviet regulations on architecture.