Visiting and finding out more about a Historical Site or Building. (E.g. Housesteads Roman Fort, Escomb Church, Lindisfarne Priory, Cragside, Gibside, Wallington, etc...)
Booking to visit site - for English Heritage you can book online a couple of months in advance to visit sites for free - National Trust you need a group membership for.
Visit a historical property.
Find out as much as possible about it.
Complete worksheets (EH - provide free ones when you book!)