The fifth-longest natural arch in the world, and the longest outside China.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

Quite simply the largest tree in the world (by volume).

A monument to peace, built by one man over the course of 25 years.

A massive observation tower that features gorgeous views and unique architecture.

Unconventional site where the tracks of Zurich tramcars intersect.

A communal oasis on Lake Zurich.

An 11th-century fortress home to one of the most influential royal houses in medieval Europe.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

The bears of Bern have been a city highlight for over 500 years.

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

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.