This is more general interest than anything else, but I recently added a profile for a person born in Monaco. Monaco is a microstate, less than a square mile in area, with a population of (today) about 38,000 people (of which less than 10,000 are actually Monegasque nationals). That made me wonder how many profiles are in Wikitree for people born in microstates -- surely the gold star would go to someone born in Vatican City!
One day perhaps Wikitree could have a Microstates project covering Monaco, Vatican City, San Marino, Andorra, etc. These places are so small that surely a few dedicated genealogists could document most of the local families pretty effectively.