One of the most famous in Rome. It owes its name to the palace of Spain, seat of the Iberian state embassy to the Holy See. In the center of the square there is the famous Barcaccia fountain, which dates back to the early Baroque period, built by Pietro Bernini and his son, the most famous Gian Lorenzo. At the right corner of the staircase was the house of the English poet John Keats, who lived and died there in 1821, today transformed into a museum dedicated to his memory and that of his friend Percy Bysshe Shelley, full of books and memorabilia of English Romanticism . On the left corner there is the Babington's tea room opened in 1893.