In 3rd Place: River Puzzle
The top photo above shows the meandering Mississippi acquired by Landsat 7 on May 28, 2003.
"Small, blocky shapes of towns, fields, and pastures surround the graceful swirls and whorls of the Mississippi River, the largest river system in North America. Countless oxbow lakes and cutoffs accompany the meandering river south of Memphis, Tennessee, on the border between Arkansas and Mississippi," reported NASA.
