There is one corporation registered for every three square feet of space in this inconspicuous office building.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

The decaying remains of a ship whose captain mysteriously disappeared.

A massive maritime collision may have led to the myth of a resort island's strange financial status.

Send a postcard while vacationing with Satan.

A glowing underwater cliff attracts marine life and divers in equal measure.

Only hotel where you can legally launder money.

A miniature view of the park, caught in time.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

One of few lasting examples of the brief octagon craze that developed into folly.

Amazing meticulous gardens of personal wood carvings, Hydrangea, Canna, and many other flowers.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

Golden Gate Park's historic collection of plants.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

A perfect circle of 24 mysterious holes dates back to prehistoric times.

The timeworn "Yankee Stadium" of the fastest game in the world isn't going anywhere.

This beautiful Miami garden was designed as a laboratory for tropical plants.

Former villa and estate of James Deering developed to preserve native tropical forests.

This historical swimming pool near Miami is emptied and refilled each day with naturally filtered water.