I loved the shape and texture of the buildings I saw in Park Slope, Brooklyn, when I walked around during my visit last week to my granddaughter and daughter (I’m going back for the day on  Friday). I feel as if I’ve slipped into an old documentary or Harold Roth novel about the city at the turn of the century. I love all the detail that went into this old tenement house, soon, I am told, to be torn apart and renovated for the wave of young professionals pouring into the neighborhood.