Fodor's Expert Review Palacio de los Reyes de Navarra

The heart of Estella is the arcaded Plaza San Martín and its chief civic monument, the 12th-century Palacio de los Reyes de Navarra. The palace now houses the Museo Gustavo de Maeztu, displaying work from a 20th-century Navarran painter, Gustavo de Maeztu y Whitney. The building itself is what's really impressive, but the museum is free so you might as well have a peek.