Hotel Mercer Barcelona is a boutique 5-star hotel situated in Barcelona's Gothic Quarter. It offers stylish rooms and suites with a blend of modern and traditional design. The bathrooms in each room feature a bathtub, allowing guests to enjoy a soothing bath during their stay. The hotel also boasts a rooftop terrace, a Michelin-starred restaurant, and a spa and wellness center. With its historic charm and luxurious amenities, Hotel Mercer Barcelona is a top choice for travelers looking for a hotel with a bathtub in Barcelona.