An artificial date palm stands as a memorial to Warsaw's Jewish community.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

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

This monumental work of art symbolizes the coming together of a previously divided city.

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.

A peculiar samurai statue overlooks the center of Brno.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

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

This imposing 20th-century castle was abandoned before it was ever completed.

An impressive ensemble of sculptures that survived the Soviet regime.

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

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

The two abandoned overpasses are among the largest bridges in Poland.

This hilltop ruin is of the hundreds of stone columns built in tribute to the first German chancellor.

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 peculiar family mausoleum built by a German nobleman captivated by the occult.

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

A trompe-l'oeil statue honoring the first guide dog in North America.

Boats must transform into railroad cars to navigate this Polish canal.

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

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

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

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