Only 100 of my photos have sold at least once. That is less than 10% of my total uploaded images. Of the 100, 7 are landmarks. Some iconic and some local. Several of those have sold more than once. None is a best seller at this time. I always seek out local landmarks as well as those that are more iconic. When I visit an area I like to get the iconic photos as well as those that dig deeper into the culture and flavor. Both sell if done well and especially with a unique take.