This is the castle I've just built for my son James.
It's roughly 1:24 scale, so as to fit Playmobil characters. They have a wide range of sword-swinging figures, and I don't think we need worry too much about the historical inaccuracies of roman centurions standing by the cannon !
The castle dismantles into the two main towers and sections of wall. The joins are held with magnetic catches, so that it can be dismantled for storage, or demolished for realistic sieges
Behind the battlements is a walkway, where the figures can defend their castle.
The gatehouse tower houses the working drawbridge and portcullis. Two surly knights are thwarted when it's raised.
The drawbridge is supported by ropes from two large hinged wooden beams. Inside the tower is a click-stop mechanism to hold the beams in place. The idea is to have the beams used as the "handle" by which the drawbridge is raised and lowered.
The door into the keep is a solid wooden one, with a sturdy locking beam.
Down below, the dungeon's resident torturer is a fierce looking chap, by the name of Ghengis.
Inside the courtyard is space for working models of siege engines, such as a trebuchet -- maybe for Xmas !