This mysterious and once-grand memorial still embodies a remarkable architectural vision.

A striking public sculpture representing the period of martial law in Communist Poland.

Warsaw's fantastically preserved gasworks...almost.

A statue honors the children who fought Nazis in Poland.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

A tree planted by Marie Curie is treasured by the Radium institute that she set up.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

This enormous 32-foot painting depicts Poland's greatest medieval battle in glorious detail.

One of the world's largest collections of medieval religious art.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Hundreds of notes give thanks to the patron saint of lost causes.

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

The last king of Poland was interred in this church nearly 200 years after his death.

A bronze replica of an elm tree that honors the victims that perished in Pawaik Prison.

These plaques found across Warsaw commemorate the sites where executions or battles took place during the German occupation.

An impressive monument to Poland's independence.

A tribute to the first human in space.

A cluster of headless, armless sculptures looms within a popular Polish park.

An abandoned football stadium with a tragic past.

Museum dedicated to "the man who moved the Earth."

An early creation by Erich Mendelsohn.

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

Once home to some 250,000 volumes and priceless art artifacts, this Polish estate was a target of bombing during World War II.

Catch a scenic view of Warsaw's Old Town from the top of a centuries-old dumping ground.