Every year on four days in September, buildings of every age, style and function throw open their doors, ranging from castles to factories, town halls to tithe barns, parish churches to Buddhist temples. It is a once-a-year chance to discover hidden architectural treasures and enjoy a wide range of tours, events and activities which bring to life local history and culture.

Heritage Open Days 2011 will run from 8-11 September.

Visit the website to find out more about the places you can visit for free: www.heritageopendays.org.uk