Twin Peaks

There is a place in San Francisco where one gets a spectacular panoramic view of the city.The Twin Peaks they call it, is a trip up the hill in order to get a view down below.There you see the unique way houses of San Francisco are built.
House are built like they stick to each other.You can see that clearly from the view above.
Ruby's San Francisco-based cousins Norton Bongbong and Daphne Bongbong-Singh took us up the hills.
The reason is that San Francisco is prone to earthquakes, as the entire California is.
So residents say building houses side by side would make it more resistant against destructive quake shakes.