My photo montage:
The Artsy Hallway
Combining numerous photos of the same location with the same point of view but different angels to be brought back together to appear as though it is one photo. The photographer on the left, Sasha, actually is made up of four different photos, each one she actually is in a different pose. The two professors on the right were never actually standing next to each other at this time. They both entered and left the office at different times. Each photo has different levels in saturation and color variations. Pretty nifty, huh?