One weekend, when nothing else is planned, consider this. One day you visit all the places, homes, apartments or whatever, you have lived in, and the next day you visit all the places of the other partner.
Pack a picnic or better yet, eat at a place for breakfast or lunch in your old neighborhood where you used to eat, and the same for dinner.
This also leads to recalling childhood stories, getting closer, sharing each others’ lives even more. It also adds a visual representation to each others’ stories.