A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

The secret medieval communication system will whisk your words above the noise of the crowd.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

A Milanese café entirely designed by the American director Wes Anderson.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

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

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

150-year-old satirical tableaus made from stuffed frogs.

At 929 pounds and 26 feet tall, this stainless steel fork can only be used by the likes of King Kong.

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

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

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

A statue of the Swiss cartoon character stands outside the school that inspired his creator.

A plain wooden seat that once belonged to one of the most prominent figures of the Protestant Reformation.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

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

If James Bond bungee-jumped off the side of a 720-foot dam, would you do it too?

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

This artistic fountain display pays homage to this area's theatrical history.

One of the most historical literary characters continues to stroll his hometown.

An interactive exhibition space dedicated to the kinetic sculptures of Swiss artist Jean Tinguely.

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

This statue pays tribute to the iconic musician in the place where he recorded his final studio album.