Library of Congress
Loc: Fortifications Built During the Siege
A brief overview of the structures and monuments constructed by the Army Corps of Engineers. Features historical photographs of these men, as well as two of their major accomplishments.
Princeton University
The Walls of Constantinople
This page contains information about the creation of the city walls of Constantinople in ancient times, along with a computer drafted model of the structure.
Other
Personal Site: The Roman Army
A very extensive personal site dealing with all aspects of the Roman Army: organization, leadership, tactics, logistics and much more. Click on the "Site Map" at bottom of home page to get a listing of the individual topics.