This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

This wooly sculpture supposedly marks the birthplace of a famous nursery rhyme, or not.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

Home of Philip Johnson, one of the 20th century's most influential architects.

Commemorating the spot where the famous scientist fed his pigeons.

There must be a pun in this haystack somewhere...

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

An exotic wildlife habitat right off The Strip.

A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

The abandoned train depot now doubles as a well-placed rest stop for those who take the road less traveled.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

One of the most unusual geological features, recognizable from a dozen hit movies.

"Only the devil could play golf here."

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

The most magnificent bottle house in a town strangely full of them.

Odd outsider art installations surround a Gold Rush-era ghost town.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

The highest dunes in California are the most likely place in the area to hear the Singing Sands.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.