I'd want to book like 50 flights and travel everywhere I'm interested in. Would probably stay at each location for two-three days before moving on. Of course, my family in Europe would be the first place I'd visit, and I'd probably give them the most time as I possibly can. They're scattered all over Russia, Germany, Greece, and England, so I'd have quite a lot of time to explore those places while spending time with them!
That's assuming I don't freak out, though.. knowing me, I'd spend the first few days crying my eyes out until I just lose my sanity. ): I wouldn't take something like that very well and would be petrified.