The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

The glowing blue Nymphaeum of Emperor Tiberius.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Geothermal waterfalls in Tuscany.

Stalactites and stalagmites in a beautifully lit cave.

The middle finger of modernity.

Pompeii's less famous neighbor is still revealing her secrets.

Architectureal fantasy quarter of Rome.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

The drama of nature in full effect in this Nevada State Park.

A collection of haunted objects and macabre oddities under one roof.

“Live hard, ride fast, eat pizza” at this joint filled with Evel Knievel memorabilia.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

The best Tiki bar in Las Vegas.