The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Breathtaking and huge 430 year old maps of Italy.

Jesus' footprints and the first catacombs in the world.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Five candy-colored villages on the Italian Riviera.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

This wildlife refuge is home to more than 200 species of birds, as well as monkeys, lizards, and other wildlife.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

A second generation sun-powered marvel lights up the night.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Legends surround this jagged rock formation in the New Mexico desert.

A museum dedicated to the alleged Roswell Incident.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.