Medellín is loco for flowers. Participants in the annual flower festival use 600,000 flowers to create plus-size images of animals, people and objects. See where the flowers come from by visiting a flower farm about 45 minutes outside of Medellín. Chat with the flower farmer, or silletero, and stroll the farm taking in all the flowers and their lovely aromas. Then visit Santa Elena, where farmers produce an abundant variety of tropical and...