Split by the Andes and lush with rain forests, South America’s natural treasures are complemented by colorful cultures and captivating cities, from Cartagena to Buenos Aires. ATA offers something for everyone here: stargazers find dark skies over Patagonia, hikers and history buffs can head for Peru, foodies savor fine wines and local cuisine in the valleys of Argentina, the music-minded can hit the streets of Rio or Salvador, and nature-lovers have their pick of biodiversity hotspots in Brazil’s Atlantic Forest, the Amazon, and beyond.