One street divides a single town that stands in two U.S. states.

What's a diner from the 1939 World's Fair doing in a remote Utah mountain town?

This geothermal hot spring hides beneath a slowly growing mineral dome.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

Explore a wealth of fossils in one of the most prolific dig sites in North America.

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

Supplies are schlepped up by llamas at this century-old inn, accessible only by hiking trails in the Great Smokies.

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

The rockpile was the founding landmark for the town of Gillette, and is now the home of the region's history.

An ode to "The Queen of Appalachia."

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

A modern frieze of ancient Grecian mythological figures playing a national pastime.

Historic funicular railway, believed to be the shortest railroad in the world.

The decor of this Hollywood movie palace just barely predated the opening of King Tut's tomb.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

This is the oldest Roman-made bridge in the city still existing in its original state.

A once-thriving hotel from the Old West now sits abandoned, under the threat of demolition.

A sculpture serving as an homage to Pope John Paul II.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

2300-year-old Roman road connecting the empire.

Jesus' footprints and the first catacombs in the world.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

A park where people have been going to feed friendly pigeons since the 18th century