Serbia. Knjazevac is a town and municipality located in the Zaječar District of the eastern Serbia. « Vuk Karadzic » Primary School. School yard. Pupils run back to school after the morning break. The Pestalozzi Children's Foundation (Stiftung Kinderdorf Pestalozzi) is advocating access to high quality education for underprivileged children. It supports in Knjazevac a project called " Education for child rights" 20.4.2018 © 2018 Didier Ruef for the Pestalozzi Children's Foundation