A couple weeks ago, several of us were sketching at Olympic Sculpture Park at Seattle's waterfront. Most of us included the iconic Calder Eagle in our sketches. In my first sketch, from a distance, I couldn't imagine what a house was doing in the middle of the park, but when I went down for a closer view, I learned that the rooftop was a sculpture!! and folks were encourage to climb on the roof! It was a great view, tho I must admit the weeds and dried grasses were what first attracted me.
Okay, so give me weeds or a garden or P-Patch and I will stop to do an "urban sketch!" The Cascade P-Patch in South Lake Union area has lured me in several times this summer. There's SO much character there, and an ever-changing array of plants.