The largest earthwork effigy in the world.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

An abandoned cyanide mill is now a haunting magnet for graffiti and illegal parties.

The museum is housed inside the historic 1863 Carson City Mint.

Smooth basaltic rocks tell a tale of ancient glacial waterfalls.

The hundreds of movies and television shows shot in this high desert town are commemorated in a unique museum.

This rock formation named for its unique shape is one of many that call the Alabama Hills home.

This rest area is also home to a remarkable petroglyph site.

This Old West eatery along America's Loneliest Road was originally a stop on the Pony Express.

Red ocher pictographs survive in this tufa rock shelter on the shore of an ancient lake.

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.

One of the oldest hospitals in the Americas is now decorated in hallucinatory murals.

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Macabre museum devoted to historical Viennese murders.

This former insane asylum now holds a pathological anatomy museum.

These relics of the city's past now exist as a prominent modern feature.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

A silly medieval mural preserved on the side of a Viennese house.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The world’s oldest military museum has remained largely unchanged since the last days of the Austro-Hungarian Empire.

An internationally-recognized dark sky sanctuary lies in northern Nevada, near the Oregon line.

As fallout from an irrigation project, a formerly cottonwood-lined stream is now a sandy, desolate, post-apocalyptic channel lined with weathered stumps and tumbleweeds.

Colorful outcrops and cliffs just north of Reno provide a scenic backdrop for hiking and mountain biking.