These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

A stairway to heaven, or to nowhere at all.

A slice of central Asia in the middle of Berlin.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The fairy tale castle of the "fairy-tale king."

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

A tower-like theater in the Swiss Alps built to withstand the high winds and avalanches of the mountain pass.

This simple apartment may have inspired some of the most important theories in the history of science.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

A Swiss board game museum housed inside a picture-perfect castle.

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

World's largest permanent maze made of 18,000 conifers.

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

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

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

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.

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

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

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

These spooky and unusual stone formations create an underworldly landscape.

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

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.