The world-record holder for the longest bridge stretching continuously over water.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

This daunting 1st century fortress was purportedly the site of one of the most dramatic revolts of the Jewish-Roman wars.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

The timeworn "Yankee Stadium" of the fastest game in the world isn't going anywhere.

12,000 sq. ft. museum tracing erotic art from antiquity to modern times.

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

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

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.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

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

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

Exact replica of the ancient monument, but much, much lighter.

Kentucky's anomalous peninsula projecting into the Mississippi River, site of legendary earthquakes and local feuds.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Enormous lake at the bottom of a unique cave system.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.

A local scoured more than 1,000 acres for stone to create his masterpiece.

The world's longest known cave system.

The only arched bridge made of stone on the entire Mississippi River.