42nd story Pyramid shaped penthouse tops Seattle's oldest skyscraper.

The eroded core of an ancient volcano is now accessible by a short hike.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

Experience a charming 1930s version of "infotainment."

A building so large that it has its own weather.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

A Nesting Doll of Churches.

Ancient human, animal, and geometric figures drawn in the earth.

A tunnel with windows, so you don't miss out on the impressive views.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Megachurch turned Catholic church comprised of 10,000 glass panes.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

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

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

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

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."