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

There aren't too many operational funiculars around, but Pittsburgh has two!

An architect's childhood fantasy treehouse made real.

10,000 flowered plants bloom in the City of Roses.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

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 highest point in Washington state is a volcano covered in glaciers.

The land is home to swimming ponies and a legendary 18th-century treasure.

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

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

This private residence was the template for one of the most beloved television homes of all time.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Constant erosion has created a surreal landscape of bleached and preserved fallen trees.

The drama of nature in full effect in this Nevada State Park.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This massive redwood tree has a hole in the base big enough to drive through.

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