Erosion and time have created a naturally-formed water park.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

Ornate limestone building now filled with geologic specimens, and more.

Even with its slightly risible name this colossal cross is still able to inspire awe.

A local scoured more than 1,000 acres for stone to create his masterpiece.

World's largest collection of Coke-related items not held by the Coca-Cola company.

The longest navigable underground river in the United States is home to countless blind and albino animals.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

An enormous natural sandstone bridge in Kentucky.

One man's vision and a labor of love of many.

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

Colorful collection of antique musical oddities.

Symbolic attempt to overcome the issues of life.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

Patrick Dougherty's fantastic living tree sculptures, mind-blowing but temporary.