Ecuador's largest Incan ruins show evidence of sophisticated irrigation and diplomacy among the ancient builders.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

Fantastic views and thousands of love locks.

The entrance to this Frankfurt subway station looks like an old tram car crashed into the concrete sidewalk.

The last bastion of Roman presence north of the Alps looms over a German town.

A quaint medieval millhouse hovers surprisingly above the waters of the Seine.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

A 141-foot wave of crashing lumber guards the entrance to the Grand Place in Mons.

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

This former coal mine, now a fascinating museum, was the site of Belgium's worst mining disaster.

A moving memorial to the fallen and missing from WWI trenches.

A once-magnificent collegiate church is falling into ruin.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

Gigantic water vessel, permanently grounded in Southern Albania.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

A naturally beautiful, seemingly bottomless deep blue spring.

In the shadow of a former battleground, the resting place for nearly 2,000 soldiers who died in World War I.

The highest point in Belgium is a staircase to nowhere.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.