An underground city of salt.

Created as a "model concentration camp" to hide Nazi atrocities from the international community, this former camp-ghetto now holds a museum and memorial honoring the lives lost within.

Steadily reminding Czechia of its past.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A surreal statue honoring Prague's favorite literary son.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Macabre astrological automaton clock dating to the late 1400s.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A small car graveyard sits in the shadow of the famous Cadillac Ranch.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

The folks at the Devil's Rope Museum want you to get hooked on barbed wire history.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

A clear blue swimming hole with hidden caves, still unexplored.

Once the tallest building in the world and the site of “the highest dinner ever held in New York” this building now holds the most expensive penthouse in the city.

A Nessie-like monster supposedly lurks in this lake.

From golden eagles to peregrine falcons, this rehabilitation and education center is a haven for birds of prey.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A sculpture made of 10 Cadillacs as a monument to the “Golden Age” of the American automobile.

This monumental Jesus is often referred to as "Our Milk Carton With Arms."

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The second oldest continuously operating bar in Louisiana.

It's a pretty creepy lock-up.