I kinda did this with the entrance of Labyrinthian, entering with my Skyrim character and thinking "Wow, 230 some years ago around 3E 399, the Eternal Champion walked these halls..."
I dunno, I just thought it was neat that there are many neat opportunities to visit Skyrim's landmarks in Arena.
Although I'm rather angry that Winterhold, a place with like 500 buildings and a huge population in Arena, is now a crap town with 3 buildings and like an 8 person population in Skyrim.
