A giant can of fruit cocktail is all that remains of what was once the world's largest cannery.

Radioactivity still cause for concern at this urban explorer's paradise.

A restored 1920s cascade stairway provides one of the best views of Oakland's Lake Merritt.

An Aladdin's cave of old Silicon Valley tech.

An abandoned convention space that has been left to the homeless and the radical.

Neither Spanish settlers nor anyone since has been able to tell who built these strange California rock walls.

San Francisco Bay's ghost town.

The black lab that was voted mayor of a California town is forever remembered by a life-size statue.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.