One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

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

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

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

It's easy to forget what century it is as you wander this rustic homestead.

A mural and a few historical markers commemorate Denver's once-thriving Chinatown, which was obliterated in a racist riot.

This Chinese-style quartz sundial was saved in its final hour.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

This restored farmhouse is a time capsule of a 19th-century Colorado homestead.

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

A museum chronicling pioneer life constructed over Interstate 80.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

Once a slice of Cold War-era military history, this museum is finding its future in the stars.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

A bizarre house filled with an astounding array of collections.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

Where experiments are conducted on all things wood.

This forgotten beach house built to look like a Frank Lloyd Wright masterpiece overlooks a hidden beach.

The final resting place of one of Thomas Jefferson's formerly enslaved sons.