Retirement home for giant obsolete machines.

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

What was once an underground Nazi city is now Europe's largest bat reserve.

A statue of Vladimir Illyich Lenin guards this abandoned building in the "Forbidden City."

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

Brought to you by the makers of fiberglass dinosaurs.

A memorial to the beloved brown bear that served in the Polish army during World War II.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

A somber memorial honors the hundreds of thousands of lives lost at this labor and extermination camp.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

The site of one of the largest prison escapes of World War II.

This stone amphitheater was once part of Nazi Germany's plan to promote propaganda.

A section of destroyed vertical lift bridge stands alone in the Peene river.

A unique, free-floating electric ferry may be the only of its kind in Europe.

When the river dries up, these stones start talking.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

This watchtower once presided over the Berlin Wall.

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

An abstract and eyecatching clock/fountain is the centerpiece of this little-known German city.

This towering statue of Jesus provided internet to the surrounding area.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

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