Here is an amazing discovery by UFAH on YouTube. They found a humanoid and a vehicle behind a wall. There are also other interesting structures in this picture.
NASA link: http://mars.jpl.nasa.gov/msl-raw-images/msss/01052/mcam/1052MR0046290000104622R00_DXXX.jpg
Gigapan link: http://www.gigapan.com/gigapans/176719/snapshots/459515
