The seat of the Archdiocese of Valencia, begun in 1262 on the footprint of the city's main mosque, itself built over a Roman temple. Three doorways step through three centuries of style — Romanesque, Gothic, Baroque — and the octagonal Miguelete bell tower watches the Plaça de la Reina. Inside, a chapel holds the agate cup the cathedral has called the Holy Chalice since 1437. — from the studio