A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This sublime architectural marvel is a rare example of an expressionist church.

A Nesting Doll of Churches.

Real bones which are said to have belonged to a Polish dragon.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

Largest lake in Great Britain measured by surface area.

Home to three historic ships from the age of Vikings.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

Six beautiful wooden giants are hidden around Copenhagen.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

A walkable map of the world, made from soil and stone by one man.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.