A big yellow castle.  It Has a bulb to
light the big LEGO sign in the tower.
A motor turns the four knights at the base.
These photos show several different units.
Some have had other pieces added to them.
The original, authentic one has the knights
that are made out of blocks and plates.  I 
keep other photos for reference to get a 
consensus on things like the village at the
top of the display. The little houses were 
only one brick deep, so they were easily 
damaged or missing altogether.