In 5th Place: A Frightful Face?
The top photo above shows Lake Eyre acquired by Landsat 5 on Aug. 5, 2006.
"The scary face in this image is actually inundated patches of shallow Lake Eyre (pronounced "air") in the desert country of northern South Australia. An ephemeral feature of this flat, parched landscape, Lake Eyre is Australia's largest lake when it's full. However in the last 150 years, it has filled completely only three times," reported NASA.