The words "swamp" and "beautiful" do not often appear in the same sentence. However, wetlands are a valuable part of the environment, and if you look past the mosquitoes, they can be quite fetching. See a collection of gorgeous photographs of swamps around the world at Environmental Graffiti. Pictured is the Pantanal, which spans the borders of Brazil, Paraguay, and Bolivia. Link
(Image credit: Flickr user miquitos)