Main Square is for me the best attraction in Krakow, becouse there is always many things to do, for example you can watch performers, it’s actually free, but if you enjoy some performing you can give them few pounds. It’s not the rule, but it would be nice for them. It also will motivate them to doing best. Main Square is very big, there is also many restaurants and pubs.
You can go to one of them to drink the best coffee ever. At night Main Square is still crowded, but not as much as daily. There is something like Bar coulture. Because of many tourists and local students, Krakow has one of the highest concentrations of drinking establishments on Main Square. Every evening there is a thousands of people talking and drinking beer.