This is my first attempt at making a castle wall with studless battlements. The length of this model is 41.5 centimeters (nearly 16.5 in), the highest point reaches about 13 centimeters (a little over 5 in), and the walls are 11 centimeters (almost 4.5 in) high.
Close up of the gate
Close up of one wall with 2 archers.
An aerial view of the gate.
A few minifigs with a battering ram.
The wall is pretty high. It is about 2 and a half minifigs in height. As you can see, the ladder can't reach.
The gate opens to allow people to pass.
Here is a back view of the top. As you can see, I used some hinges and a little SNOT to make the towers.