Originally Posted by gyldenlove
Well, the two are build to achieve similar things. Palaces and fortresses are often build in a modular way to separate not only those who work there from there who live there (just like a prison) but also those who live there. In most grand palaces in Europe there would be several generations of a family plus concubines, and of those they would all need to be in different places with minimal contact.
Another important similarity is that palaces and fortresses were build so they would be defensible from outside attacks, this is done by maximizing the amount of walls that overview any spot outside the facility - for prisons this same arrangement is used to avoid blind spots where people can hide from surveilance.
The ordered and symmetric grounds are just a result of architects being narrowminded, better structures could easily be made by doing away with symmetry.
Talking to security personell who's job it is to make sure...they are 'secure' - they basically took TMI's plan of keeping people out, and inversed it to keep people in.