This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

Dr Barnes' $25 billion private collection of art and arboretum.

This might just be the TARDIS of bookstores.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

Washington's iconic carousel has a nice piece of Civil Rights history.

Largest Roman Catholic church in North America.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

A toxic ghost town sitting atop a massive coal fire.

The trials and tribulations of marking Poe's grave.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

A local prank turned town icon.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.