st. patrick’s church at night. this is one great location in the city, in front of the yerba buena gardens, next to jessie square, behind the contemporary jewish museum, a block from the sfmoma. it thrives during the day, mixing tourists, locals, students, children, the elderly, the homeless, the list goes on. i have had lunch sitting on the grass here on many occasions, a breath of much-needed fresh outside air. parks and public squares are the lungs of the city, they become a critical factor in the inhabitability of a city. the desire and pleasure of a city grows according to the quality of its public spaces.