A superb structure made from Soapstone that has recently had renovations completed to reveal a magnificent example of the building. There is a webcam mounted on the municipal building opposite as seen Noto cathedral webcam.
The original town of Noto was shaken apart during an earthquake and a local dignitary was given a budget to rebuild it further around the coast. As part of the re-building, in 1776 the cathedral was re-build out of soapstone as it was more easily carved and shaped. However soapstone is much weaker than sandstone and as a result, in 1996 the dome collapsed due to the structural weakness of the soapstone and was re-opened in 2007 after the whole cathedral was treated to strengthen the stone.
There are reasonably priced cafe's along high street and behind the municipal building is an ice-cream factory. They best place to try it is at the cafe (Google maps) on the corner of the piazza opposite the cathedral on the corner of the Corso Vitorio Emanuele (the same one as the "Christmas Cake" building on Rome).
If you carry on walking down the Corso Vitorio Emanuele (Google Earth image - also shows the nearest car-park by Cava Cardinale), a little further on is a small, but spectacular on the inside, church where you can get access to the roof overlooking the cathedral. Further down the street there is an arch dedicated to the builders and beyond that (and across the road) is a benched area where you can take in the vista of the valley beyond. The best place to park is on the Via Tommaso Fazello (Google map) and to walk in (about 5-10 minutes).