One of America's first dinosaur parks gives a window into Depression-era paleontology.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

A bizarre house filled with an astounding array of collections.

A large circus museum with summer performances.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

"We Seceded Where Others Failed."

A historic presidential getaway on the continental United States' southernmost island.

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

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

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

America's only nuclear missile silo open to the public.

See massive fossils that are over 200 million years old in northeastern Arizona.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

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

An abandoned Jazz Age dream home and con man's hideout in Death Valley.