Now the site of a high school, this was almost the location of the largest cathedral in the US.

A working model of the entire San Francisco Bay and much of the Sacramento River Delta, complete with regular tides that change every 14 minutes.

A sculptural commentary on capitalism pokes up from the East River.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Neoclassical Revival mansion and set of horror cult classic Phantasm.

Shakespeare has been brought to life in this open air theater for the better part of a century.

An illegally built ramshackle mansion tucked in the middle of Brooklyn is now being turned into condominiums.

The once highest point in China blends symbolic design with a kick of adrenaline.

The most famous location in China was home to whole dynasties worth of imperial rulers.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The rusting remains of the largest assembled WWII fleet on the West Coast.

A man-made island in scenic San Francisco Bay.

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

An essential stop before plundering, BYO Cutlass.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

The former Naval shipyard is open for exploring - mostly.

The perfect spot for a picnic, right next to a giant ballistic missile.

The timepiece that exonerated a labor radical accused of a parade bombing that killed ten people.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Peek through the gates at this oasis from the city, full of Old English charm.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

A dilapidated dock tells the story of Titanic's missed arrival.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.