A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

This private residence was the template for one of the most beloved television homes of all time.

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

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

Tiki luxury on Nob Hill.

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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A huge musical instrument played by the ocean.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A psychedelic labyrinth on the San Francisco bay.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

This 19th-century Hamptons windmill was once home to modernist painter Agnes Pelton.

The mansion home of author Edith Wharton.

Eight whimsical acres of metal art.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

A once grand hotel is being retaken by the wilderness it once capitalized on.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.