The only road through the heart of Glacier National Park.

Spectacular views await visitors to this lake.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

If astronomy had a ghost, it would look like this observatory.

The Fun Farm weaves fairy tales, myths, and magic into a magnificent collection for visitors to explore.

The only freestanding table rock formation east of the Mississippi.

This candy shop has been serving up sweets to the Louisville area since the 1850s.

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

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

Visitors to this arboretum are greeted by three smiling giants crafted from sustainable materials.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

The world's longest known cave system.

Abortion, prohibition, religion, war, and fear all play a part in the history of this idiosyncratic Pacifica castle.

Where beautiful signs live on forever.

The massive, original Colgate Clock is mounted on a defunct factory building that was once a prison.

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

The lynching and burial site of America's first train robbers.

This granite monument at the site of an ill-conceived tourist attraction is built from the same stone as the Mormon Temple.