Hello! I am making a quick add-on 3 day trip to Barcelona after a Business trip week in southern Spain. I am very familiar with Spain having lived there but not with Barcelona, the one place I have never visited in Spain. I am looking for a hotel in a good location in Barcelona where I can make the most of the location and get to sightseeing easily and quickly. I want to use Marriott Rewards points so I don't want to stay at the Ritz Carlton as it will use up too many points and I expect I will only be in the room for sleeping. I think my 3 days will be filled with seeing the sights. I do not know enough about Barcelona to pick the Marriott hotel in the best location or a good location. I am a woman and will be by myself so I need a safe area of the city. Can anyone give me advice on which Marriott location would work best?