The meetup will take place in the "Bisogno" and "Natta" meeting rooms. Those rooms are very close each other and are located in the so-called CNR "new wing" in Via dei Ramni. You need to register to get a badge in the main entrance of CNR building in Piazzale Aldo Moro 7 (the place indicated by the A in map). When you have the badge, go to the entrance in via dei Ramni: out of Piazzale Aldo Moro, turn right to via dei Marrucini and then right again to via dei Ramni, the entrance is the first door you find. If you are in trouble, call me: (+39) 333 5237578.