This indoor ski resort has a mountain contained inside a mall.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

A massive collection of petroglyphs dating back some 40,000 years.

The village's cobblestone streets are lined with shops displaying exquisite copper craftsmanship.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

Swirling layers of white and red rock earned these mountains their festive nickname.

This burial cave houses around 100 ancient coffins, neatly stacked to form a massive wall.

This belfry is all that remains of the town that was buried by a violent volcano eruption.

These Stalin-era industrial 'death traps' hang lifeless above the city

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

This former quarry is now a picturesque gorge that hides a sunken lake.

Dedicated to the history of mining and minting in a region rich in silver and radium.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

This doorless 20th-century elevator doesn't stop or slow down.

A Jenga-style cylindrical tower of books that appears to go on forever.

An existential riddle in the world's largest ancient castle.

A surreal statue honoring Prague's favorite literary son.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

Macabre astrological automaton clock dating to the late 1400s.

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

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

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