Heritage Open Day: Find out more about the fascinating history of a medieval parish church with stained glass and church heritage tours All Saints North Street is often described as York's finest medieval parish church and is home to some of the most spectacular and unique medieval stained glass in the country. Guided tours of the church's heritage and restoration work (morning) and stained glass (afternoon) will run at 11am and 2pm, with tea and coffee provided during the lunch break and the opportunity to see the church bells rung.