Everybody knows these cylindrical homes with cone roofs, I guess.
One of the things to be proud of my country, Puglia.

Rome is a wonderful city but has its problems like holes on the streets. This map is a little guide to produce a "sanpietrino". A "sanpietrino" is a little basalt brick used as street paving. There are often holes in the street because of broken or missing "sanpietrinos". Following this suggestions tourists will be able to fill the holes with handmade paper bricks!