The first American department store, and home to the largest operating musical instrument in the world.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

This elaborate towering structure was once famed for its revolutionary height.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

This nine-story building can be played like an instrument.

Georges Seurat’s pointillist masterpiece has been recreated in Ohio in topiary form.

This maze-like, oceanfront gift shop—the nation’s largest— has been serving kitsch to the Myrtle Beach community for over 80 years.

Massive still life just off the highway in Kansas.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

One of few remaining antique carousels with stationary animals in the U.S.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

This alpine statue of Jesus in Silverton is said to protect both miners and local economies.

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.

A devilishly named gorge that was a sign of salvation for many pioneers.

A popular rock that acted as a waymarker for American pioneers.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

Features unique photographic collections by women of the American West and historical attractions such as a two-story outhouse.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

Miraculous tree that seems to sprout out of solid rock.

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

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

The largest source of fossilized insects anywhere.