A black cat protests the City Guild in Riga's Old Town.

The reconstruction of this prominent building fulfilled a long-written command.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

With a design inspired by traditional Latvian textiles, this monument honors the Latvian people who suffered under Soviet occupation.

Flamboyant architecture from the turn of 20th century.

During the renovation of this bas-relief, the constructors added one unusual element.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Artists have long been drawn to these atmospheric 12th-century ruins.

Stonehenge has nothing on Castlerigg’s views.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

One of the largest squares in Europe contains an entire artificial island.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

The only medieval bridge in Britain with its defensive tower still in tact.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

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

The bears of Bern have been a city highlight for over 500 years.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Artworks by loners, prisoners and the criminally insane.