I have collected a number of Dungeon Maps and House Plans, which are used in SketchUp, for me to make my dungeons and dream homes from. Here is what I have done so far.
The Dungeon Of Moxdoon
https://3dwarehouse.sketchup.com/model/35740021-a268-45ee-a5de-4ac4bc6bef0f/The-Dungeon-Of-Moxdoon
Sacred 2. Sacred Hall Of The Temple Guardian Chambers
https://3dwarehouse.sketchup.com/model/682cace2-0bde-4acc-9880-1a51ad416885/Sacred-2-Sacred-Hall-Of-The-Temple-Guardian-Chambers
The Guardian Cube
https://3dwarehouse.sketchup.com/model/3b63c296-8033-4210-b1aa-b11a4e3d6441/The-Guardian-Cube
Dream Home 1
https://3dwarehouse.sketchup.com/model/b5bf6c10-33aa-4f4e-a9a0-3f862c08f8aa/Dream-Home-1
All of the above models can be viewed in full 3D, just click on the links, or copy and paste the links into your browser.
The Guardian Cube was made as a seperate model by me for the Sacred 2. Sacred Hall Of The Temple Guardian Chambers
Also The Sci-Fi Doors were made by me as one seperate model that was duplicated for each room as seen in the Sacred Hall Dungeon Level model.