#1 Seville Cathedral (Seville)
Located in the heart of Seville, the Seville Cathedral impresses with its massive scale and blend of Gothic and Mudejar architecture. Built on the site of the former Almohad mosque, it houses the tomb of Christopher Columbus and provides panoramic views from its bell tower, the Giralda. Its monumental nave, intricate chapels, and orange tree courtyard define the Andalusian spirit.