Twitter user @GirlPlaysGame has gone and done something incredible. She created Bioshock Infinite’s floating city of Columbia in Fallout 4 and it looks absolutely amazing. She used a variety of mods to accomplish the feat which she did list out on her website.
Unfortunately, you can’t go to her website right now because it crashed due to all the traffic it has been receiving from a retweet by Irrational Games (the developers of Bioshock Infinite) and a post on Gamespot. In the video below, you can get a full tour of the floating city.