Thousands of turbines whir at at the origin of North American wind power.

This giant temperature attraction created some giant electric bills.

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

Faceless white figures loom over the city from the rooftop.

A carousel trades in its classic horses and calliope for endangered species, native flora and fauna, and a modern soundtrack.

Acres of natural wonders left behind by a socialite-turned-gardener.

A multimedia experience that chronicles the atrocities of racism.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Canyon walls shrouded in ferns.

Tiki luxury on Nob Hill.