A natural history wunderkammer in the middle of the desert.

One of the largest open-pit copper mining operations in the entire country.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

A cabinet of curious mathematical models and old calculators.

Miniature art that tells an enormous story.

A rare wayfinding portmanteau of “Street” and “Avenue.”

The Magical World of George Phar Legler.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

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

A reproduction of earth's many biomes.

Jacksonville's highways rendered this century-old grammar school unusable.

The only Florida state park with publicly accessible caves.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

After the parade, students throw their beads on the tree hoping for good luck on exams.

Tiny horses tethered to antique rings are scattered around the city.

A quirky Poe-themed joint on an island keen to celebrate its overlooked connection to the famous writer.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

A sliver of nostalgia in Seattle's Viretta Park.

Paths are maintained, but trees have taken over plots.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The only working large-scale tea plantation in the United States.