Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

There’s a hidden military meme engraved on the World War II Memorial.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

The Mysterious Witch Bonney, a haunted statue in an old industrial city.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

A monument celebrating the idea of reaching inaccessible places.

Meet manatees face-to-face at this zoo for native species.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

An architect's childhood fantasy treehouse made real.

An exotic wildlife habitat right off The Strip.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

The largest source of fossilized insects anywhere.

Just a man taking his prehistoric pet for a stroll.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

When waves crash onto this section of beach, the rocks sing a song.

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

The first custom-designed building to showcase the works of Dale Chihuly is a wonderland of glass and light.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

Native Americans built this circle of stones, which was used to predict astronomical events.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The fifth-longest natural arch in the world, and the longest outside China.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.