From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

These flying foxes dangle from the trees around the library like fuzzy black fruit.

At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

Across Ring Mountain is a vast collection of Native American petroglyphs unique to the region.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

This historic national park is covered in the stunning ruins of red rock pueblos.

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

This comprehensive collection features Native American artifacts dating back centuries.

Inside this garden, visitors are offered a glimpse into how inhabitants of the region survived centuries ago.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

One of the ghostly stops along Route 66.

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

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.

A bronze tribute to a legendary Californian, the self-proclaimed "Emperor of the United States."

A remote desert lookout offers unparalleled views of the California badlands for those who brave the trek.

A very classy 1920s-era bar right in Grand Central Station.

The front yard of an Upper East Side town house hides the last fragment of one of New York's most famous theatres.

The highest point on the island known for buildings that touch the sky.

A "time traveler's" vision of human history stretches throughout Mexico City's Copilco metro station.

A unique market that brings together various goods and cultures.

This tiny home was originally a narrow alleyway.