http://www.ye16.dial.pipex.com/fol.htm
I thought some folks might find this interesting. I don't know who this site belongs to, but what they built was really neat. The construction techniques they used are the same as what anyone today could use to build a "castle", whether it be usign an ashlar method, brick, rubble, concrete or even a facade. Obviously, for this little item foundations and codes were likely not much of a concern as they would be for a full-fledged building. Anyway, just seeing the sequence of events as the folly goes up is neat, as well as the methods of building the spiral staircase and arches.
Thought you all might enjoy this.
EDIT: I did figure out that the site is created by an individual that produces suits of armor:
http://www.ye16.dial.pipex.com/