These pink granite water slides are the result of millions of years of erosion.

Large rocks have been painted to whimsically resemble wild and farm animals.

Underneath this water pump, Annie Sullivan helped Keller speak her first words.

In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

What better place to take a seat?

Designed by Maya Lin, the memorial honors 41 individuals who died fighting for equal rights between 1954 and 1968.

Orr Park's dead trees have been carved into a menagerie of whimsical visages.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

148 feet long and in the middle of a verdant forest.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

A natural sandstone bridge hidden in the Sewanee forest.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

Follow the steps, and this roadside artwork will teach you how to dance.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

This depiction of the earth mother welcomes new life into Aurora Highlands.

A memorial dedicated to the victims of the Columbine High School shootings.

The largest self-built castle in the U.S., six decades in the making.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

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

A multiversal transit station located right below a highway interchange.