An abused and forgotten metropolis, abandoned for centuries.

A Turkish ghost town abandoned in a population exchange with Greece.

This famous city eluded concrete detection until the early 2000's.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Roman ruins top white travertine terraces formed by ancient hot springs.

A marvel of Byzantine engineering under the streets of Istanbul.

Dedicated to the American general whose reply to a German demand for surrender was simply "Nuts!"

After the construction of a nearby cathedral obstructed the view, the oldest belfry in Belgium was more than doubled in height.

Also known as Napoleon's Canal, this waterway was created on the orders of the general, and construction was interrupted by Waterloo.

A whimsical bridge uses saxophones to pay tribute to two great men and the European Union.

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

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

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

Christ's blood allegedly preserved in a Belgian town.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Looming communist pillar with a Czech twist.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

The last king of Poland was interred in this church nearly 200 years after his death.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

An open-air museum of 18th-century homes and churches transported from various villages in Southern Poland.