Mull Museum in Tobermory.
A small museum and archive crammed with information about the history of Mull and its people - geology, standing stones, castles, Spanish Armada Galleon, crofting, emigrants, schools and World War II Naval base.
Open Easter to October Monday to Saturday 10am to 4pm.
Other times, and library and archive, by appointment.
The archives contain a wealth of documents and photographs about the history of Mull from earliest times to the present day.