The remnants of a creative early method of wildfire prevention.

This Native American settlement dates back to the Pueblo II period.

The “Grand Canyon of Maine” is a three-mile gorge full of striking geological features.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

A mass grave for victims of an airline disaster that led to much-needed safety improvements for commercial flights.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

This small interfaith chapel lies not far from the rim of the Grand Canyon.

A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

One of the largest, oldest, darkest, quietest motel rooms in the world.

Visit a sweet shop selling one of the first candies ever made and sold in America.

One man’s hobby is another man’s world of metal wonders.

Like stepping into a spooky fairy-tale, this shop carries the dark ideas of artists and other makers.

A museum dedicated exclusively to the lore and history of ouija boards.

The headquarters in Salem doubles as an occult art gallery.

A collection of full-size movie monsters opened to the public.

A 19th-century cabin built into a hollowed-out Sequoia tree.

Four hundred granite steps were built into this massive rock by the National Park Service.

Thousands of turbines whir at at the origin of North American wind power.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

The actor best known for slapstick comedy is memorialized in his home town.

This university transit system is a 1970's vision of the future.

The "All-Seeing Eye of God" symbol on this library is a clue to one of the many former lives of this building.

Some big-name visitors have patronized this small-town library named for an oil man's daughter.