This bridge's unique architecture honors nautical heritage and encourages self-awareness.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

This enigmatic artifact remained buried in a churchyard for years.

This statue is dedicated to the animal cosmonauts that perished during space flight experiments.

Medical museum that houses most notably the taxidermied remains of Vladimir Demikhov's famous two-headed dog experiment.

Atop this electronic store resides a massive fighter jet.

A few crumbling buildings and the occasional pipe sticking out of the ground are all that remains of the largest refugee camp in Sweden during World War II.

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

An abandoned football stadium with a tragic past.

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

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

This now-defunct synthetic fuel plant was once a major cog in the Nazi war machine.

An extensive network of secret tunnels was created for the Nazi project "Riese."

A Soviet era flat that refused to conform to the dull gray standards.

Krakow's own version of the Hollywood Walk of Fame.

Remnants from a time before electricity.

This wooden mosque is one of the few remnants of medieval Poland's Muslim Tatar community in this deeply Catholic country.

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

Atop this library is one of the most beautiful green spaces in Warsaw.

Gliwice Radio Tower, likely the tallest wooden structure in the world.

A statue commemorating a Polish dog who took his role as man's best friend very seriously.

The majority of the highest mountain in Poland is actually located in a different country.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.