Shoreline strewn with the remains of ghostly fallen trees.

A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

The longest spit in the United States ends at a lighthouse in the Strait of Juan de Fuca.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

A giant roadside black bird marks the location of this eclectic local mall.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

The second tallest railway trestle bridge in America.

The largest and most well-preserved petroglyph site in the Verde Valley.

The stone circle honors the 19 firemen who perished during the Yarnell Hill Fire.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

An important piece of history from mankind's journey to the moon sits in the lobby of a government science lab.

The remnants of a creative early method of wildfire prevention.

This remote desert watering hole has a connection to a curious chapter of American history.

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

A Wild West jailhouse that slid down the mountainside.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

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

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

The Grand Canyon’s original airport, which once welcomed pilots like Amelia Earhart and Charles Lindbergh, lies abandoned.

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

The first steel dam in the world and the only one still functional in the United States.