Colorado's only active volcano last erupted around 4,000 years ago.

Toss a Frisbee through the ruins of this Colorado gold mining town.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

America's post-nuclear-attack chambers of Congress.

A sacred Ojibwe site covered in pictographs next to Lake Superior.

Beautiful scenery, history, science, and physics come together in this remnant of shipping lore.

The world's only bushplane museum captures the spirit of the early planes and pilots and their contributions to northern life in Canada.

Miners in Michigan developed a taste for Cornish beef pasties, which this roadside stand has been selling since 1947.

For books about travel, whether factual or fictional, the perfect antiquarian does exist.

A watercolor recreation of a famous fresco unearthed at Pompeii.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

60 feet of towering steel balances gracefully.

A second generation sun-powered marvel lights up the night.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

A modern day curiosity cabinet.

The remains of an early 1900s dude ranch that operated until the 1970s.

This vintage theme park is peak Christmas kitsch—and it's open all summer.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A mysterious echo seems to defy the laws of acoustics.

A collection of the best toys ever made inside a museum devoted to play.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.