modern buildings under construction on the coast and contrast with the colors of nature, cartagena, colombia

architecture backgrounds bay beautiful beauty blue buildings calm cartagena city cityscape coast colombia colors construction contrast copy crowded destination ecology ecoystem environment high holiday horizon hot idyllic land landscape light loneliness marine modern mountain nature nobody ocean old outdoors panorama panoramic peace peaceful relax scenic sea seascape seen serenity shore silhouette sky skyline skyscraper space top tourism town tranquility travel urban vacation view wallpaper water waterfront