This whimsical park encourages its visitors and wildlife to roam on and around the various works of art.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

The largest retailer of seashells in the world.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

The bizarre story of the mysterious death and hidden treasure of one of Sanibel Island's early homesteaders.

Less a museum than a bizarre fantasy world created by artists and engineers.

The large rock formation where the Shawnee prophet Tenskwatawa stood and encouraged his warriors during the Battle of Tippecanoe.

A bizarre house filled with an astounding array of collections.

Arguably the best example of an authentic Dutch windmill in the United States, rivaling its counterparts in the Netherlands.

This house renovated by Frank Lloyd Wright was the centerpiece of a lavish 20th-century estate.

World's second largest particle accelerator, where nature reveals its secrets.

These pretty kitties killed and ate as many as 135 railway workers.

Years of archaeology, just chillin' by the water cooler.

To find the "unicorns of the deep" you've got to go downstairs.

You thought Santa Claus didn't exist, but it turns out you were wrong.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

A unique outdoor timepiece at a "clothing-optional" resort.

The chiseled jaw of this forgotten American hero still stands tall in a small Indiana town.

Whether his story is true or not, Stiffy Green is the most beloved bulldog in all of Indiana.

One-layer pyramid in Indiana.

Tombstones carved to look like tree trunks are used for multiple generations of family members.

An unknown number of cholera victims are buried in two nondescript graves.

Along this stretch of Indiana roadway resides a giant insect composed entirely of scrap metal.

A medical facility that has been kept frozen in time.