This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

A spiritual vortex among the red rocks in Sedona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

A geological mystery on Camelback Mountain.

These free-roaming horses were once destined to disappear from the land.

This collection of Wild West movie memorabilia also claims to hold some secrets of the Lost Dutchman's mine.

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

This small hill features the most notable collection of petroglyphs in Saguaro National Park.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

America's only nuclear missile silo open to the public.

Stock up on all your horror paraphernalia at this year-round Halloween emporium.