Earth's otherworldly landscapes - CNN.com August 13, 2012 -- Updated 1159 GMT (1959 HKT) Death Valley, California Morocco Svalbard Islands, Norway Atacama Desert, Chile Iceland Peru Seabrook Island, South Carolina Cape Town, South Africa (CNN) -- We can't visit Mars (yet), but our own planet's unique terrain presents plenty of landscapes with an out-of-this-world feel. Here, iReporters share some of their otherworldly experiences and photos, which cover a lot of ground on Earth. Share your travel photos with CNN iReport.