Ukraine Aviation Museum
The Ukraine State Aviation Museum (Museums of planes) offers a marvelous collection of Soviet built aircraft. Even if you're not interested in aviation this is still a great place to visit. Kiev is home to the Antonov Design Bureau. You'll see rare Antonov types on display. There are plenty of examples from the other builders as well: Tupolevs, Ilyushins, Sukhois, Yakovlevs, MiGs & Mils; and more besides. Entrance fee is very reasonable and you pay a little extra to take photographs. There are no inside exhibits. Everything is outside.