Saturn's rings cut across this view of the planet's largest moon, Titan, in this image taken by the Cassini spacecraft on May 12, 2011. NASA/JPL-Caltech/Space Science Institute hide caption

toggle caption NASA/JPL-Caltech/Space Science Institute

Big Fish Petroglyph by Kevin Sudeith was created in October 2013 in Smelt Brook, Cape Breton, Nova Scotia in Canada. "All the fish on this rock are carved at life size, and most originate in the story of a local fisherman," says Sudeith. Kevin Sudeith/Courtesy of Petroglyphist.com hide caption

toggle caption Kevin Sudeith/Courtesy of Petroglyphist.com