Venetian glass is a type of glass object made in Venice, Italy, primarily on the island of Murano. It is world-renowned for being colourful, elaborate, and skillfully made. Many of the important characteristics of these objects had been developed by the thirteenth century. Toward the end of that century, the centre of the Venetian glass industry moved to Murano. Despite efforts to keep Venetian glassmaking techniques within Venice, they became known elsewhere, and Venetian-style glassware was produced in other Italian cities and other countries of Europe.