A crumbling World War I fort that is reached through a series of concrete tunnels.

Legend says this sacred tree was a gift from goddess Athena.

A tiny Greek Orthodox church from the Ottoman era hides on a busy city street.

A secluded oasis of contemporary art and natural beauty.

The West's first incursion into the Afghan world lies buried beneath a military base.

The world's longest bridge fountain has hundreds of nozzles that create a beautiful, illuminated spectacle.

A symbol of hope, survival, and national character, especially after it rose phoenix like from the flames.

Only a few pieces remain of a grand 16th-century water clock that once announced the changing hours with the sound of bells, gongs, and drums.

The best place for scenic views of the DMZ and North Korea.

255 feet of suds, scrubbers, and blow dryers.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

A small museum dedicated to the king of Western swing.

Artifacts from a battleship sunk at Pearl Harbor displayed in the Capitol building of its namesake.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

The former home of the army detachment that captured Geronimo.

One of America's oldest stadiums was also the site of one of the most brutal anti-labor acts in American history.

This open-pit mine is now an abandoned symbol of Bisbee's copper-mining heritage.

This Old West hotel, the longest in continuous operation in the state of Arizona, is claimed to be haunted.

An early 20th-century jail not far from the infamous Tombstone, Arizona.

Out of a desire to feed hungry soldiers, a franchise-altering idea was born.

A short interpretive trail about one of the first human cultures in North America.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.