Most-visited and most-photographed slot canyon in the American Southwest.

A Buddhist retreat built on more than 100 acres of California Redwood forest.

San Francisco's newly reopened hands-on science museum.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

This 252 step staircase offers stunning views of San Jose.

This giant shopping mall still holds signs of its automotive past.

Art in the form of a winding, man made crack in stone.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

The world’s largest concentrated solar plant generates as many problems as megawatts.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

One of the ghostly stops along Route 66.

Golden Gate Park's historic collection of plants.

The unbelievably opulent home built for an infamous newspaperman.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

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

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The black lab that was voted mayor of a California town is forever remembered by a life-size statue.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Quite simply the largest tree in the world (by volume).