This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

This unusually circular centenarian barn became a Route 66 icon.

The surprising home of the iconic Santa Monica Pier Ferris Wheel.

One of the largest Masonic temples in the world, created at the height of the oil boom in ostentatious style.

Sitting in the arguable birthplace of the Wild West, this museum holds the largest collection of bronco busting bric-a-brac in the world.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

Final resting place of Geronimo, Quanah Parker, and the first atomic gun ever fired.

The largest land animal skull ever discovered.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

A contemporary fresco movement illustrates the region's rich history.

This steep cable railway has been hoisting passengers in the heart of Québec City for over a century.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The final resting place of New Orleans' most famous voodoo priestess.

Elevated freight railway turned wildly successful urban park.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.