A replica of the first public theater built in California.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

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

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

The stately birthplace of California's statehood.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.

Its unique collection details the history of the state's svelte railroads.

Historic home to one of the most famous women pioneers of the 19th century.

The museum is housed inside the historic 1863 Carson City Mint.

A museum dedicated to the history and exploration of both popular music and science fiction.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

Perhaps the most scandalous statue of America's first president.

Largest Roman Catholic church in North America.

Home to a vast and influential collection of Shakespeareana.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

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

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