In Bologna there are numerous food shops, with all kind of colours and designs. There are olives of all sizes and colors, all kinds of pastries, meats and cheeses. You can find other items, like leather, in the elegant arcade Galleria Cavour, while there are many shops around Piazza Maggiore where you can buy antiques. Shop opening hours are usually 09.00-13.00 and 16.00-19.30, closed on Sundays. The walk through the streets is great, I love it.