Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

Breathtaking and huge 430 year old maps of Italy.

This unique medieval artwork featuring the story of the Antichrist remained lost for decades.

This German fountain of a legendary apple wine-loving drink thief will spit on you.

The world's only silo that was topped by two revolving restaurants has unfortunately been demolished.

Fantastic views and thousands of love locks.

Though it may look like a businessman's lost luggage, this case suspended under a highway bridge is actually a contemporary art installation.

This colossal couch is an unlikely monument to Europe's first female Doctor of Law.

Unconventional site where the tracks of Zurich tramcars intersect.

Constructed along the shores of Lake Zurich, this pavilion is a walk-through work of art.

The Swiss hilltop housed an early 20th-century vegetarian nudist colony.

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

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

The world's longest and deepest train tunnel.

This unique preservation is one of the only taxidermies in the world made with real whale skin.

A Swiss amusement park entirely dedicated to the theory of ancient astronauts.

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

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

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

Featuring a meatless buffet fit for kings, this family-owned Zurich eatery is considered the oldest vegetarian restaurant in the West.

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

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