This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

The first Russian Orthodox church in the Catholic city of Rome in almost a thousand years.

A gothic church dedicated to the love of wine.

Swedish skyscraper with a 90° twist.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Go surfing on this urban wave, "hacked" by local surfers.

Old cabin-like homes in a rural community untouched by time are known for their vibrant and colorful window shutters.

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

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.

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

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.