La Sagrada Familia is an Art Nouveau basilica designed by Antoni Gaudi just over 100 years ago, making it the newest church on our list of Most Beautiful Cathedrals (and Churches) in the World.

The beautiful 13th century Palatine Chapel and the 15th century ... such as Marc Chagall, have practiced their art in the cathedral. The first episcopal palace, known as the Palace of Tau, played an ...