Kazan is one of the oldest cities in Russia https://en.wikipedia.org/wiki/Kazan with rich history and traditions of pieceful cohabitation of people with different culture and religious believes and practices.
Kazan is also a modern city that offers global citizens access to technologies, services, art, sports and cultural events. Also if you left Russia or Kazan more than 10 years ago you will be pleasantly surprised to discover so many old and new sides of Kazan. https://www.youtube.com/watch?v=CRD10LH_Ljw
More about life in Kazan and the Kazan State Medical University please find here.