EXPLORING ST. MARK’S BASILICA IN VENICE by Barbara Radcliffe Rogers

In 1075, the Doge passed a law requiring all returning ships to bring back something precious to decorate the basilica, accounting for the more than 500 columns of rare marble, porphyry, alabaster, and jasper brought back from the East. The interior is clad with 4,240 square meters of gold mosaics, mostly from the 12th and 13th centuries

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