A little odd-shape, yes, but a "square" nonetheless; Unity Square should be home base for your explorations. Pick a street and head off into the tiny alleys that fan out in all directions. There's no real sense in "planning" your route, simply choose a direction and go—you'll end up where you started eventually. Each turn seems to bring a new charming vista, and cute buildings and shops will amuse and keep shutterbugs busy. Don't forget to look up in the direction of the castle every once in a while; it pokes through in some amazing places. The actual square has a couple of notable buildings, including the Town Hall with its Renaissance friezes and Gothic arcades.
Český Krumlov, Bohemia, Czech Republic