The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

The first full-scale tunnel built in America is short but scenic.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A miniature city built by a single hunchbacked monk.

This improbable contraption was passed down through five generations of industrious Tennesseans.

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

A bronze sculpture honors the 12 black students who attended the first integrated public high school in the segregated South.

This simple, broken column marks the final resting place of one of America's most famous explorers.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.

Enormous lake at the bottom of a unique cave system.

An entire town preserved as a historic landmark.

The only road through the heart of Glacier National Park.

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

In a city crazy for seashells this museum educates and amazes visitors using the wonder of cast-off exoskeletons.

Perhaps the most scandalous statue of America's first president.

Home to items never before seen by the public.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

The small first-floor apartment where the author wrote her Pulitzer Prize-winning book 'Gone with the Wind.'

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.