This unique sanctuary invites you to interact with the beautiful birds.

Once known as the Illinois Asylum for the Incurable Insane.

Planes, trains, and automobiles have all been sunk as attractions at this Illinois diving spot.

Over 1,000 pieces of one of the most niche art objects imaginable: the glass paperweight.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

A river with some unusual, and occasionally dangerous, habits.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

The final resting place of the world's first nuclear reactor.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Cemetery featuring rare glass-fronted columbarium.

This historic hotel invented the chocolate brownie.

These abandoned grain silos and tunnels are an urban exploration dream.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

Even Henry David Thoreau found this glacial pothole irresistible.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

Explore 10 acres of environmental sculptures.

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

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

The only diamond mine in the world where you can keep what you find.

A 300-ship graveyard, with a few still visible at low tide.

A hollow cement depiction of time's inexorable effect on the human body.