Before the Industrial Revolution, glassblowers made all wine bottles by hand..and these punts helped the bottle stand upright ...

Travelers can get a close look at what's left of the original furnaces and see modern-day glassblowers create everything from candleholders and vases to wine bottles and other useful glass products.

In the early 20th century, most glass production happened in factories. Even individual glassblowers making their own personalized designs would do their work in those large shared buildings.