A museum documents the development of the invention that tamed the Wild West.

This 100-foot tall bluff located in the western plains of Kansas overlooks a massive reservoir.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

Some of the Old West's most notorious outlaws frequented this mining town.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

The secret medieval communication system will whisk your words above the noise of the crowd.

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

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

Chicago's largest cemetery is full of beautiful Victorian monuments and more than a few ghost stories.

Pizza with a side of fine art.

Shop of curiosities with a dinosaur museum tucked in its basement.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

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

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

This alley in downtown Chicago held the bodies of over 600 people after the fateful Iroquois Theatre fire.

No two pieces are exactly the same at Portland's hippo-themed hardware store.

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

For over 100 years, this Indiana town has had a tree growing out the top of the local courthouse.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

Wheels of chrome by the thousands adorn this California Historical Landmark.