The Poznan Gate (Polish: Brama Poznania ICHOT) is an Interactive Center for the History of Ostrów Tumski. The main exhibition presents the history of the Cathedral Island. It tells the story of people, events and moments of crucial importance for the Poznan Cathedral Island, which was a place where science, art and commerce could flourish. The presentation of more than a thousand years of history allows visitors to understand the changes that have taken place over the centuries. The museum offers two sightseeing routes: one for young people and adults, and one for families with children.