The Kyiv Aircraft Museum is located directly at the domestic Zhulyany airport on the western boarder of the city.
It's a very interesting site which includes fighter aircrafts from 1914 - 1995, passenger- and experimental aircrafts (TU 134 with noase of a fighter aircraft) as well as helicopters (incl. the world biggest helicopter, hind military helicopters with bullet holes...).
Condition of the aircrafts isn't perfect but very well reflects the complete Ukraine and the mentality. Instead of investing in the aircrafts they've just placed them near the airfield and now try to make some money (entry approx. € 3.00).
When in Kyiv and you're a technical interested person you should visit the Aircraft Museum.