Formerly the most gerrymandered district in the U.S., it twisted and turned along racial borders.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

An artificial hill and apparent calendric structure built in the Early Middle Ages immortalizes a legendary Polish princess.

The site of the first battle of World War II.

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

These massive moving sand dunes have swallowed an entire village and are still on the run.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Come to this Polish museum to take a good, clean look at filth.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

The shell of a medieval fortress offers commanding views of the area it once protected.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

Double spiral staircases are not unheard of, but they are very rare.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.

A national collection of Communist-era musical posters.

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

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

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

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

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

In the midst of a living monument to Soviet social engineering, Polish Catholics built this church by hand.