If you're looking for a calm and quiet place to reflect, organize a visit to Església de la Mercè. This house of prayer offers a welcome break from a hectic travel schedule.
You'll soon find out why this Downtown Barcelona house of prayer is popular with travelers. If you're looking for other things to keep you busy, Sagrada Familia, La Rambla, and Plaça de Catalunya are in the area too. They won't take you long to get to from Església de la Mercè.