I have been to the Louvre, The Hermitage, The Egyptian Museum in Cairo and lots of others but my favorite of all is the Medical museum. I've probably been there at least 10 times and always take visiting friends there. All tours are guided and you should make reservations. There is a brief talk in the beginning about some well known doctors and teachers of medicine. After that, you're guided through three sections of the museum full of medical instruments, wax exhibits in lifelike settings, dioramas, murals. The guides give you more information than my brain can easily digest but enough for those who love detail. Stories are told of heroism that would probably even move cold hearts. If you're coming to Kiev, I would definitely visit beautiful old churches and walk it's streets, but don't forget to check out the Medical Museum too. It's more than worth the time.