Starting -- first two towers, bridge, house, and big damp mass of sand
Right two towers with a bridge between them
All four towers connected by three bridges
Stairs around right tower, starting windows and door to "church"
All four towers with their bridges -- battlements on top of steeple to "church" make it look more like a castle now
More decorations and windows for left tower (by children)
Large round tower (next to "church") has gained many small circular windows and stonework. Omar is now erecting a circular wall in front