Mysterious heaps of stones dot these otherworldly woods.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

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

A small granite monument marks where the borders of three countries meet.

An impressive ensemble of sculptures that survived the Soviet regime.

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

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

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

The first museum dedicated to exploring humanity's cultural relationship with the celestial world.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

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

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

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

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

An abandoned masterpiece of Soviet Brutalist architecture.

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

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

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A plaque claims this artwork outside a children's hospital was used in the 1998 Quidditch World Cup.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Eighteenth-century home, where Herschel discovered the planet Uranus.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

The mark of the Devil's horns on a marble column in Milan.