The Castle Keep of Newcastle upon Tyne was built by Henry II between 1168-1178, it is one of the finest surviving examples of a Norman Keep in the country.
The Castle Keep is one of the local attractions that sits in the background but I’ve still never gone to. Not even sure what’s inside. Ghosts? They have a tour to find them. I’ll update when I find out myself.
The Tales of Missus P. 
It sounds lovely celebrating your anniversary with dinner at El Torero.