Where lovers tie birch branches into long-lived knots.

A giant floating rubber duck-bunny painted with a different design every year.

The bridges portrayed on EU currency aren't fictional anymore.

This colorfully-painted tunnel links two distinct parts of a historic neighborhood.

This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

A preserved building where the dead were once watched for signs of life.

The world's first floating farm is staffed by one human, three robots, and 35 cows.

This medieval castle was painted pink as part of a now-abandoned children's theme park.

Tucked away in the Leiden city hall are a group of works by famed artist MC Escher.

Drive past the giant fruit sculptures and up to the window for a menu of fruity treats.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

Rub it for a bit of good luck.

A 15-foot-tall statue of the head of the Sopranos family greets passengers at a train station in southeastern Lithuania.

An impressive ensemble of sculptures that survived the Soviet regime.

Described as one of the Baltic region’s most daring and original construction projects.

A 100-plus-year-old mill transformed into a hotel and restaurant.

This lonely Lithuanian chapel looks more beautiful and haunting in decline than it ever did in life.

Underwater roads undetectable from the surface used for escape routes from foreign invaders.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.

The pyramid and dome deep inside the Dzūkija forest are believed to channel divine energy.

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

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

You would never guess that before World War II this lonely field was a bustling German city.