A geological mystery on Camelback Mountain.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

The unusual burial monument of Arizona's first governor.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

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

This simple, broken column marks the final resting place of one of America's most famous explorers.

The former home of the 11th president of the United States.

A small, red building located along a state highway where the 18th Vice President made shoes in his youth.

Dedicated to a local cow who escaped a slaughterhouse and became an international symbol of peace.

America's first public lending library began with a gift from Benjamin Franklin.

A stone marker dedicated to the “Father of American Education.”

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

The Boston square dedicated to the dark poet who was born nearby.

The trials and tribulations of marking Poe's grave.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

On a former island, this old fortification once used to protect the Boston Area and started Edgar Allan Poe in his military career.

This old-fashioned carhop restaurant gave the world the waffle cone.

A cement mixer-turned-kaleidoscope in downtown Norfolk offers different views of the city.

A lightship turned museum, outfitted with artifacts from the vessel's past as part of the U.S. Lighthouse Service.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

A treasure trove of rare and exquisitely detailed antiques