In the centre of Gibraltar, after driving through the tunnels leading to the Old Town, there is an area full of shops. One of them hides behind an ancient glass-blowing factory. Here you can buy the finished articles from the factory but it is better to see how they do it as well. It is one of the few things that is still done in the same was as in the past. It is an art - transforming sand into a clear liquid under very high temperatures and then blowing and shaping the glass ... Very interesting.