-how about a secret place where always a time machine spawns.
could be handy if your stuk in 1955 or something and you can't get a time machine to get back.
(oh or fix the thing that the time train fall trough the roof of the maison.)
-ow and how about a completed map of hill valley!
who's idea was it to remove half hill valley!@! i mean that's gonna look realistic a flying road!