Crews demolished a 103-year-old cottage in the Glen Park neighborhood of San Francisco.
Historians believe it was one of thousands of earthquake shacks -- cottages put up to house homeless quake victims while the city was being rebuilt. But the Department of Building Inspection ruled it was unsafe for anybody to go inside or even near it.
The roof had collapsed and it was infested by termites.
Material from the demolition will be carefully inspected and documented.