An abandoned mine where dreams of quicksilver trickled away over 75 years ago.

An abandoned movie set in the desert of West Texas.

An abandoned quicksilver mining town surrounded by the Big Bend parks.

Craggy concrete faces are hidden in the walls of this artificial cave along the San Antonio River.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

The world's largest fire hydrant is supposedly tornado-proof.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

An astounding collection of medical specimens, including bits of President Lincoln.

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

At this local mall, visitors are ushered through a 1940s jail exhibit.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

A 150-square-foot masterpiece of American landscape art is the crown jewel of this library and art gallery in Vermont.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

Thirteen pastel palaces in downtown Charleston add a gorgeous splash of color to the city.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

A museum dedicated to the legacy of Bob Moog and his pioneering synthesizers.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

Don't be surprised if you see a long-necked dinosaur peeking out from among the trees in Northgate Park.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.