The Catedral Metropolitana, facing Parque Central, was constructed between 1782 and 1815 (the towers were finished in 1867). It has survived earthquake and fire well, though the quake of 1917 did substantial damage and the one in 1976 did even more. Its heavy proportions and sparse ornamentation don't make for a particularly beautiful building, but it does have a certain stateliness, and the altars are worth a look.