If you are using Chrome, Firefox or Microsoft Edge for Windows 10 (tested on version 25.10586.0.0) explore a virtual siege environment.
Explore a landscape showing different kinds of siege engine, including the trebuchet, siege tower and battering.
For best results when exploring the reconstruction press 'C' to hide the mouse cursor and 'L' to go full screen. Press 'Shift' to run.
The reconstruction has been created using Unity 3D and employs the technology of WebGL.
You may also be interested in exploring a motte and bailey castle.
You may also be interested in exploring a Northumberland castle built near the Scottish border. An excellent example of a tower house with improved fortifications.