The SOMA district, which means "South of Market", is an area in San Francisco that was originally full of warehouses. During the dot-com boom, companies started uses these as cheap office space.
Today, the area still looks like it's full of warehouses, but it's more likely that a dot-com resides inside the building rather than boxes for shipping. This influx has brought a lot of money into the area, so also behind the concrete facade lies a whole slew of restaurants and bars.
One notable exception to the uniform look of the buildings is South Park, which has a small grassy area, swings and benches.