The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

Try not to get slimed in Tribeca.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

The Hollywood home of Kermit the Frog and Yoda used to be Charlie Chaplin's film studio.

A few iconic structures are all that remain of America’s first outdoor shopping mall.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

The real-life site of Ichabod Crane's infamous gourd attack.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

See massive fossils that are over 200 million years old in northeastern Arizona.

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

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