Ah ok, that makes a lot more sense then. The "Reißbrett" style streets, together with the channels and harbors remind me of the 17th century urban planning of Amsterdam.
Oh btw., i think you mistranslated "Flotte(n)" into brisks in your initial post. Should be "fleets" instead i guess? Well, sorry, i'm really no Rechtschreib-Nazi, just had to look up brisk(s), because i've never seen the word before