Monty Don visits the world's 80 most inspiring gardens. This time he is in South America, a continent twice the size of Europe and the home of more than 50,000 endemic plant species. In Rio de Janeiro, Monty visits the private garden of Brazil's most famous artist, Burle Marx. He views the ingenious floating gardens of the Amazon. He visits a crumbling estancia (ranch) in the windy Pampas. He ends his journey on the Pacific coast of Chile in a garden that sits harmoniously in its landscape.