Great Barrier Reef (August 8, 1999)
In the eyes of the creators of “Earth as Art,” these neon-green blobs look like dinosaur bones at a dig site. In reality, they are just a few of the 2,900 coral reefs that make up the Great Barrier Reef. Stretching for more than 1,200 miles along the northeastern coast of Australia, the Great Barrier Reef is a wildlife hotspot, home to hundreds of species of corals and thousands of species of fish and mollusks. Large mammals like humpback whales and dugongs (a manatee relative) also swim in the nearly 8,000-square-mile reef system.