If the weather's taken a turn for the worse, why not spend the day at Casa Rivera? You'll be fascinated by just how much you can learn about days gone by here.
You'll have no end of sightseeing choices when staying in Ciudad Vieja. Casa Rivera is an ideal place to kick off here, but there are loads of other worthwhile places to check out. Centenario Stadium, Pocitos Beach, and Tres Cruces Shopping Center are not far from the collection of historical artifacts and and will cap off your day nicely.