A witch wreaks ruinous revenge on this ancient church with her "enchanted leg."

Natural time capsule containing an alien ecosystem.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

This roadside attraction has been serving out its fair share of hearty folklore and chaos since 1858.

A community gathering place that once housed half-ton tanks and the World's Fair.

Leave a button on the jacket of this iconic Seattle clown.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

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

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

A large circus museum with summer performances.

A bypass decorated with large wooden troll carvings.

More than 5,000 contemporary and "historic" mustards from around the world.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

There has been an astronomical clock on this spot since the 14th century.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

The longest and widest floating bridge in the world.

This unique Seattle structure was designed to be the greenest commercial building on the planet.