I've seen the Antonov 124 at Bangor many times, but have never seen the Antonov 225. After all, it's the only 1 in the world. LOL!
If you like "plane watching" like I do, keep an eye on the
FlightAware.com website. Bangor has quite an eclectic mix of aircraft arriving and departing, both because of the long runway (over 2 miles) and the fact that it is the closest customs airport when arriving from/departing to Europe and points further east. (That plus the fact that it has a very good price for aviation fuel - $4.75/gal at Bangor vs $7.82/gal at Boston.)