View of San Francisco skyline from Treasure Island at sunset, San Francisco, California, United States of America, North America

travel destination photography horizontal colour image skyline sunset san francisco california north america building exterior architecture urban scene facade skyscraper sea water sky incidental people tower modern futuristic city tree branch outdoors united states of america american culture usa us united states american north american colour color image color outside tourist destination travel background people people in the background cities typically american traditional culture tradition traditional traditionally american sundown dusk twilight