An intricately carved Viking church overlooks a glistening fjord.

Home to three historic ships from the age of Vikings.

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.

See how paper is made the old-fashioned way.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

One of Amsterdam's narrowest houses is located right across the canal from its widest.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Cat art as far as the eye can see.

A floating cat sanctuary on an Amsterdam canal.

A tiny church on a man-made island in the Adriatic.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

This public amphitheater was once a key part of Monaco’s defense strategy.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

A miraculous three-handed portrait of a saint can be found inside this church.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

This former KGB building is now a museum memorializing the people who suffered during the Soviet regime.

These traffic lights celebrate the 100 year anniversary of the women's suffrage movement in Lithuania.

A century-old prison in the heart of Vilnius is now a lively bar, dance club, and artist residency.

Over time, this castle grew to encompass the entire island.