Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Arlington Cemetery exhibit dedicated to death and grieving.

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

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Trinkets and toys lovingly handmade by maximum security prisoners.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

Teddy Roosevelt’s famous “midnight ride to the presidency" started at this small lake high up in the Adirondacks.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

This two-room shotgun shack in Tupelo is the birthplace of a King.

Stone monument honoring a town founder has a witch-boot shaped stain and a curse to go with it.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

Oldest and rarest examples of telecommunication in the world.

HFH's slum simulation is either a noble recreation of poverty or a cringeworthy attempt at same.

Bad farming practices caused this unnatural natural wonder.