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

A 300-ship graveyard, with a few still visible at low tide.

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

Visible below the waves are memorials to the city's Gold Rush dead.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

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

A museum befitting the city responsible for supplying the majority of the world's LSD.

Olfactory delights in San Francisco's Botanical Gardens.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

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

A 140-year-old castle with underground caves hidden in San Francisco.

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

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

A huge musical instrument played by the ocean.

The house where Good Will Hunting was written is a surreal fairytale abode.

The quiet canyon has a tumultuous history involving a doomsday cult.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

Come crisp December nights, this fairly plain neighborhood becomes a holiday dream world.

A little barn in the middle of the city preserving Hollywood treasures since 1985.

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

This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

The famous animator's private station house and man-cave was the birthplace of imagineering.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.