This splendid tomb may look fantastic, but there's nothing in it...

A three-shelf library serves as a memorial in the Jewish cemetery of Krems.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

This architectural beauty is the home to a personal collection of more than 600 examples of mechanical musical instruments.

Abandoned railway line circling the city of Paris.

France's most famous cemetery, with some of its most curious tombs.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

An exotic wildlife habitat right off The Strip.

The Ozarks' strangest dwelling.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This museum houses an imposing skeleton army comprised of creatures great and small.

Unusual rock formations eroded into a landscape of stone beasts.

A 125-meter long "tribute to the Brazilian people."

Once a kitschy symbol for a gift shop, this 38-foot seahorse is now a staple roadside attraction.

Two thousand artifacts from around the world collected by one woman who loved to travel.

An enormous, inside-out glass globe built in 1935.

The world's oldest and largest museum of mass transit vehicles.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

These massive concrete balls were used to mine gold in Virginia.

This simple stone memorial remembers a secret, Geneva Convention-defying interrogation base from WWII.

This museum explores the grim reality of life in the earliest British colonies in America.