The only remaining historic maritime signal station in the United States.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

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

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This historic hotel invented the chocolate brownie.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The cinder cone volcano with a less than complimentary name.

The eroded core of an ancient volcano is now accessible by a short hike.

Ancient pueblos built into the base of a natural canyon wall.

This historic national park is covered in the stunning ruins of red rock pueblos.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

A mysteriously dark cemetery monument fuels stories and legends galore.

Home with Gothic windows featured in a famous painting.

The park is home to the United States's only still-operating Dutch windmill.

An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

This shallow cave got its name from copious amount of human bones found inside.