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At least four churches were built in succession and only the last, the Basilica of Euphrasius has survived. The present church was built in the mid-6th century to the orders of the bishop whose name it retains, Euphrasius. All the buildings are richly ornamented with mosaics, alabaster, marble, mother-of-pearl, and stucco. The central feature inside the dome is a representation of the Virgin Mary, holding the Christ Child and flanked by angels, local martyrs and Bishop Euphrasius. Because of its exceptional value, it has been inscribed on the UNESCO World Heritage List since 1997.