The United States' first transcontinental automobile road came to its end at this spot in San Francisco's Lincoln Park.

A winding path built in secret on the edge of the continent.

Celebrating the transformation of trash into objects of beauty.

Experience Larry Spring's self-taught "common sense" laws of physics.

A trash dump made beautiful by nature's power.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

Inside the world's largest seed bank, WWII botanists elected to starve to death rather than compromise their collection.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

San Francisco Bay's ghost town.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The first declared National Monument in the United States.

The celebrated eyesore created by starry-eyed sweethearts.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

The California capital city once stood 10 feet lower than it does today.

A replica of the first public theater built in California.

Art Deco stylings conceal the true nature of this bridge.

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

Over 300 taxidermied animals in a Californian restaurant make for a taxidermist's dream and an animal lover's nightmare.

A strange house built only at night, with rumored mystic inspiration.

The most beautiful Taco Bell in the world even has surfboard parking.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

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

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

A 90-acre park on former landfill that hosts an annual kite festival.