This artificial cave looks like something out of a fairytale.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The silly symbol for an underground protest group is now scattered around the city.

These abundant, over-the-top monuments are so widely scattered that they define the entire compact capital cityscape, often leading to jokes about whether there are more statues than residents.

In the hometown of the Catholic saint and Nobel Peace Prize winner, a memorial dedicated to her legacy.

A futuristic, brutalist masterpiece that is also strangely prison-like.

A 11-foot former president stands on a Kosovo street that also bears his name.

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

This historic black and white monastery is one of Bulgaria's architectural jewels.

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

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

A unique bridge with an equally unique view.

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

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

Stockholm's narrowest alley is barely over two feet wide.

See how paper is made the old-fashioned way.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

This magnificent 18th-century hall consists of a maze of nearly a thousand interconnected passages.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This cheese shop also houses a museum devoted to Dutch dairy.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.