This one looks badly damaged, but contains a curious fragment which looks like something out of the European Middle Ages.
The color below shows the positions of the heads:
And here it is in false 3d, for those of you with 3d glasses:
Special thanks and credit for the original images taken by the Mars Global Surveyor - Mars Orbiter Camera (MOC) to: NASA/JPL/Malin Space Science Systems
Raw Images Courtesy of NASA and ESA. Special thanks to EVERYONE who has contributed in the search for Mars anomalies. Also thanks to Google, Picasa, ImageShack, and Photobucket.