People mentioned rereading so I wanted to mention also a similar pleasure, returning to favorite places after several years. I recently spent some time in London at the National Gallery, visiting a few favorite paintings which were still where I last saw them, and had a sandwich at Pret. I felt exactly like a student again and it was very refreshing.

I think it is important in life to have places to go regularly and small rituals as Mia says, it is nice to have a few places to go in each city if one travels regularly, really to help orient things. I wonder if others feel the same way, or gain more energy from seeing things which are new?