A former major munitions plant that has been converted into a sprawling art space.

The only place for a truly presidential dram.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The taxidermy remains of the most popular pony in children's literature.

The narrowest house in America is seven feet of pure spite.

At 207 feet, one of the world's longest continuous escalators.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

The only recreation of William Shakespeare's indoor playhouse.

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

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This sky-high radio mast is formerly the tallest man-made structure in the world.

The world's tallest turtle riding the world's largest snowmobile.

"...I guess that was your accomplice in the wood chipper?"

A monument to the center of the North American continent may be off by a few miles.

A true roadside icon standing on the same plains that the herds once roamed.

With its peeling paint and faded sign, this theater-turned-recycling plant is a nostalgic relic of 1950s Americana.

Etched into a dry lake bed, this massive directional indicator is accurate without magnets.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

A massive volcanic plug is now a protected area that hosts a number of bird species.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The cluster of boulders near Fort Irwin is covered in military insignia.

Honoring the famed folktale author, this California museum looks like it belongs in the Black Forest.

California's oldest wind harp represents a historic piece of America's Danish history.