On top of the world is how we caption this photo from San Juan, Puerto Rico this Thursday morning. Discover Puerto Rico, the Island’s Destination Marketing Organization (DMO), on Wednesday launched the “Blank Canvas Initiative,” a call to street artists around the world, inviting them to share their craft on the walls of Puerto Rico’s streets, and form part of the Island’s unique and booming arts scene. For more email BlankCanvas@DiscoverPuertoRico.com.