Eat the ultimate iteration of Portugal's most beloved pastry.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

This pair of unsuspecting buildings are in fact the very first modern skyscrapers in Europe.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

This sculpture honors the man who was known as the "Righteous Among the Nations."

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

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

A museum in the childhood house of a medical pioneer.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

The rock carving that became an internet meme.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

A remarkable feat of Victorian engineering across the Firth of Forth.

A miniature of a lighthouse acts as a beacon for what transpires inside this location.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

This early version of the guillotine was used to execute the man responsible for its construction.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The most loyal of little dogs, or a Victorian era publicity stunt?

Ships still use this historic lighthouse to navigate dangerous, island waters.

A collection of birches from across Sweden.