The interiors of Gothic cathedrals are among the most impressive architectural sights in the world, and one of the most impressive of these is the cathedral of Milan. Its effect is magnified because it’s a five-aisled cathedral, and so has twice as many huge columns as it would have had if it had been merely a three-aisle cathedral (that is, it has a nave and two pairs of side aisles–two in the north and two in the south–as opposed to a nave and only single side aisles). It really does appear as a forest of columns on the inside. You can get an idea of the tremendous scale by looking at the heads of the group of people along the bottom of the picture. Milan is such a great city for art and architecture. You can see Michelangelo’s Rondanini Pieta, the Sforza Castle, the wonderful Brera Picture Gallery (which I prefer even to the Uffizi in Florence), Da Vinci’s Last Supper, and the Romanesque church of San Ambrogio, and of course the cathedral.