Just spent yesterday at Beamish Museum, a fantastic place to go if you like old world stuff. Lots of trams and old buses to ride on. A pit village, a farm, with animals, an Edwardian town, complete with sweet shop and now a 100 year old bakery, lots of other shops, even a dentist with old fashioned drill, and a pub and cafe. There are a couple of railway lines with working trains for short journeys.
You can catch a bus to Beamish from the Newcastle bus station. It's called the Red Kite line, and takes you through red kite country, obviously.
www.beamish.org.uk to find out what's going on.