San Francisco is a city of diversity and art and surrounded by nature, including within the city itself. This photograph of a woman walking the "Wood Line" brings to the fore the peaceful, natural and artsy side of a vibrant city. The "Wood Line" is a natural sculpture created by artist Andy Goldsworth. Made of carefully selected pieces of trees felled for various projects, it is more than 1,200 feet in Length. The most beautiful lesson from this work? It will eventually return to the earth.