November 22, 2012, 1pm PST
Completed in 1791, the Mission Dolores is the oldest building in San Francisco. It has survived major earthquakes in the past, writes Alexis Coe, but preservationists are worried about its fate and have begun digitally preserving the landmark.
August 22, 2011, 7am PDT
The BMW Guggenheim Lab has released an online urban planning game called "Urbanology," which asks a serious of questions to determine the type of city you think is the future.