Most Picturesque UNESCO World Heritage Sites
UNESCO's World Heritage Sites are chosen based on criteria relating to each site's historical, social, and environmental value. These sites run the gamut, from ancient ruins to historic cities. The one thing they all have in common, however, is they deliver "outstanding universal value" to human civilization — the first criterion UNESCO applies to every site. While they are all incredible in various ways, here are 10 of the most picturesque World Heritage sites.