The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

This experiment in the lifespan of seeds will take a century before it is complete.

The plants form a living library and laboratory for researchers and students at Michigan State University.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

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

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The structure has welcomed visitors to this scenic harbor city on Lake Michigan for many decades.

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

With over 5,000 champions, the Hall of Fame continues to draw amateur eaters.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

The origin of the Nixon tapes is rooted in technological incompetence as much as secrecy.

This observatory comes complete with three separate telescopes and a dedicated community of amateur and expert astronomers.

An allegedly haunted testament to a local businessman's desire for status, posterity, and charity.

This interpretive path lets you get up close and personal with dinosaur bones.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

This Moab institution functions as both a rock store and a small natural history museum.

Oddly shaped rock formation, misassociated with a nearby utopian community.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.