I took a quick trip/mini vacation to Baltimore last week (probably less than 24 hours actually). It was a little chilly but I finally was able to go to the National Aquarium which was great. While there, we stayed at The Monaco which I would highly recommend if you're ever in the area. Our room had a wall-size dog mural on one of the walls though which was probably what sold me the most since I was missing our pooch the whole time.