A cool demo of what can be done with untextured walls. Hacks, all, but in the right hands, they can make the architecture in Marathon levels look more realistic.
The Granddaddy of puzzle maps. This map won "best use of Forge" in the Bungie Mapmaking competition, and is a treasure-trove of super-cool tricks. Any serious scenario-maker should have this map in their arsenal of tools. (Yes, it's a tool.)
