I am building a diorama of a Roman watchtower and a part of the Limes around 200 a.d. All at scale 1:18. The Limes was the fortified eastern frontier between the Roman empire and Germania. The watchtower will be open on one side. Thus I would be able to use it either for a real historic diorama or for a present-day fantasy diorama of civil war coming to a historic open air museum. By the way: The entrance of these watchtowers was in the middle floor. The towers were up to 5 meters wide and 10 meters high and around 200 b.c. they were plastered and whitened with lime.
Here is the link:
http://s16.photobucket.com/albums/b2/Klausmerkel/Roemischer Limesturm 1_18/
Here is the link:
http://s16.photobucket.com/albums/b2/Klausmerkel/Roemischer Limesturm 1_18/