Luxury hotel with spa and outdoor pool near calle serrano a block to retiro park set in the ritzy salamanca neighborhood wellington hotel is a block from retiro park with its fountains rose gardens and walking paths leading to the palacio de cristal three metro stations and the national library of spain can all be found within 5 minutes walk high end designer shops calle serrano is 3 blocks west of the hotel and it rivals calle goya 2 blocks north for high end fashion brands like of pr