When your are in Venice make sure to visit the area of Murano. Murano is the name of various little islands connected by bridges just outside of Venice. The area is famous for artwork and lamps in glass, a tradition that started in the 8th century. From the 13th to the 18th century, Murano was the main glass producer in Europe.
Nowadays the glass imitations from Asia and Eastern Europe together with the decreasing number of artists (there is no more than 1000 glass artists today) has experienced a decrease of 45% of the murano glass market. What differs the original glass from the imitations is the seal from the trade mark, and of course the price. The original is always more expensive due to its quality and tradition.
In Venice, it is possible to see brief demonstrations of the glassmaking, normally attached to a shop, like the one in San Gallo Hotel. But for a more detailed tour it´s recommended to take a short trip to the Murano Island. Don´t miss out on visiting the Glass Museum inside the Palazzo Giustinian once you are there.