Most museums and art galleries in Costa Rica are found in San Jose. The central part of San Jose is noisy and crowed as the capital of any city will be. The airport is located outside of San Jose and you may come into Costa Rica via San Jose anyway, why not check it out while you are visiting. I have been told that you step of the curb carefully in Europe or get run over. Pedestrians do not have the right of way in San Jose either so watch yourself when you cross the street.