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

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

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

The Laureates here get something even more coveted than a Nobel Prize: free parking for life.

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

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

A massive volcanic plug is now a protected area that hosts a number of bird species.

The unbelievably opulent home built for an infamous newspaperman.

A psychedelic labyrinth on the San Francisco bay.

A multimedia experience that chronicles the atrocities of racism.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

New Orleans' famous cemetery, located on the site of a former race track.

California's oldest wind harp represents a historic piece of America's Danish history.

An alley covered with 20 years of bubble gum.

A hotel and restaurant serving as the mecca of kitsch.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

A popular winter vacation destination for migrating monarch butterflies.

The abandoned personal amusement park of the King of Pop.