This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.

This medieval footbridge in the Swiss Alps is known to attract cliff-jumping daredevils.

The largest underground lake in Europe.

One of the highest emergency huts in the world has been waiting almost a century to give imperiled climbers a place to lie down.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

This eclectic architectural gem played witness to Zurich’s colonial past.

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

Swiss vineyards in a UNESCO heritage site.

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

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

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

These spooky and unusual stone formations create an underworldly landscape.

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

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.

This castle was designed to have as many windows as there are days in the year.

Take a hike to this unique rock formation formed by lava flows.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

Hungarian self-built castle.

This hidden art nouveau gem was designed by an architect in search of a national style.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

In the waters outside Helsinki, a tiny island once used as a military outpost now welcomes visitors.