A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

This antique thermometer honors the creator of the first universal temperature scale.

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

Several 12th-century ruins can be found inside this historical market.

This museum in the tower of the oldest church in Gdańsk, is home to centuries-old time-keeping devices and the world's first pulsar clock.

One of the world's largest amber altarpieces is housed within this reconstructed medieval church.

Modern art commemorates one of the first military actions of World War II.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

This 700-year-old structure is one of the most unique architectural and historic monuments in Gdańsk.

This Communist-era residential block is one of the longest residential building in Europe.

Gdańsk's lion mascot features in a trail of bronze sculptures scattered all across the city.

The coffin-shaped church was once home to monks who slept in coffins.

An abandoned Nazi explosives plant founded by the inventor of dynamite is now an underground museum.

This symbol of Polish heritage survived the occupation during World War II, hidden in plain sight.

The relics are stored in a silver reliquary, where they can be seen through glass.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

Deep in a Polish forest, this collection of Iron Age megaliths still holds onto many of its ancient secrets.

This open-air museum was originally a World War II testing ground for German missiles and rockets.

The center of this Polish border town was so thoroughly wiped out in World War II that only the foundations remain.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

At nearly four meters tall, this giant potato looms over a small Polish town.

A Bauhaus co-founder designed this quirky, abandoned granary.

A stone in Wolin, Poland, marks the possible location of a legendary Viking fortress.