The Great Temple at Abu Simbel
Another interesting thing about this temple is that when they moved it they had to be very careful as to where they moved it as the Ancient Egyptians had positioned it so that twice a year (20 October and 20 February) the sun's rays would shine straight through the front door and shine on the sculpture on the back wall. They think that these two dates may have been the King's birthday and coronation date, but aren't too sure.
Apparently since the relocation though, this "miracle" occurs a day later than it originally did.