This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

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

A homage to the King at the hotel where he revived his career.

Temporary Burning Man sculpture made of two 18-wheelers.

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

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

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

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

The so-called "Father of Las Vegas" had the city's first telephone installed in his office in 1907.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

Nobles would stage mock naval battles on this large lake at the Royal Palace of Caserta.

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

The walls and streets of the ancient city are peppered with penises.

Ancient snack bar of the Roman Empire re-opened.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

Genoa's collection of over 4 million zoological, botanical, and geological specimens from around the world.

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A popular legend claims that the famous pizza was invented at a restaurant in this alley.