This impressive former palace contains a hidden gem for fans of modern sculpture.

A scale model of our Solar System, where physical representations of the Sun and planets have been placed along a route in the local park.

Ciudad Real's former town hall found new life in 2005 when the chime clock with automatons was installed.

An abandoned airport in the middle of nowhere.

The lasting remains of an airfield used during the Spanish Civil War.

A private collector gathered these sound machines and musical instruments across five continents.

Once a spa resort, then a tuberculosis sanatorium, and now a crumbling ruin.

This legendary dessert was served to Nobel laureates for decades.

It houses the remains of a 17th-century version of the Titanic.

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

An ancient Viking runestone hidden in plain view in Stockholm's old town.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Stockholm's tiniest statue is of a small boy looking at the Moon.

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

The burning of this 12th-century church kicked off a campaign of Norwegian Black Metal terror.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

This floating sculpture of ice is a poignant reminder of nature's power.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

This handsomely carved wooden church is more than 800 years old.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

This Castilian castle has stood the test of time like few others.

This waterfall, also known as the “the castanets” is said to mimic the sounds of the waves in Portugal.