Using the
No Clip mod from the Nexus, you can find some very interesting areas in the game world. Like most all open world games there are areas in various stages of completion that were cut for one reason or another. In this video the user explores locked away areas in V's megabuilding. Some are very close to being fully developed which is interesting and I am sure once the modding scene matures will get these and similar areas opened up. Check out the video below;