A sacred lake with thousands of sacred carp and a biblical history.

The largest Neolithic ruins in the world hide a notably clean prehistoric metropolis.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

An abused and forgotten metropolis, abandoned for centuries.

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

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

The memorial stands at the intersection of the rivers Morava and Danube.

An unusual cave filled with rare alien-looking aragonite formations.

A once-fairy tale mansion now stands in a state of disrepair.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

A perfectly preserved hill village where the buildings are painted like white lace.

The blood-soaked ruins of the castle where the murderous Blood Countess was walled in alive.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

A scene from one of Hungary's most famous novels.

A giant glider—designed by the father of the Rubik's Cube's designer—now soars within a shopping mall.

Hundreds of boat-shaped headstones fill this graveyard as part of a centuries-old custom with mysterious origins.

An Indonesian mosque styled after St. Basil's Cathedral.

Subterranean place of worship in Indonesia.

This Bangkok high-rise looks like a rudimentary LEGO elephant.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

One of the largest wooden constructions in Europe was meant to be a casino, but soon became an orphanage.

Step back in time and witness the fall of Constantinople.

The world's northernmost brewery uses water from a 2,000-year-old glacier to create its beer.

Walk 2,300 feet above the ground on the "Troll's Tongue."