The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The highest bridge in America was built for an almost unnervingly small amount of money.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

This fully restored synagogue explores the American Jewish experience along the old frontier.

Hundreds of trees made from glass bottles make up this forest on Route 66.

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

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

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

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

This fountain pays homage to Qatar's history of pearling, the primary industry before oil.

This unique museum doesn't shy away from highlighting Qatar's role in the history of slavery.

The building is a gigantic piece of art inspired by the shape of a desert rose.

This seemingly random 30-foot statue of an oryx in Qatar's capital was a mascot for the 2006 Asian Games.

Fourteen sculptures showing the development of a fetus stand outside a hospital for women and children.

The enormous diamond-shaped building packs a trove of academic and literary treasures into one futuristic space.

The shallow, salty inlet was a safe haven for 19th-century pirates.

Qatar's oldest market can trace its origins back more than a century.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

Resting place of Hollywood's immortals is also site of summer film screenings.