zum and zur.
Someone correct me if I'm wrong, which I probably am. But, when I say something in German relating a place does die go with zum or zur? And same goes for der and das, does der go with zum or zur and same for das.
The preposition zu becomes zur if the definite article that follows is der and it becomes zum if that definite article is dem.
Now keep in mind that the feminine article "die" becomes "der" in the Dative case.
The masculine article "der" becomes "dem" in the Dative case.
The neuter article "das" also becomes "dem" in Dative case.
"zu" is a preposition that requires the Dative case follow it, so if the noun is masculine using der or "neuter" using "das" that will change to zu + dem and be zum.
but if the noun is feminine using die that will change to zu+der and be zur.
Scroll down at this link for a table showing all the forms of the definite articles for case and gender: https://www.thoughtco.com/the-four-german-noun-cases-4064290
This link has a table of prepositions that require Dative case: https://www.thoughtco.com/using-german-dative-prepositions-correctly-1444496
Scroll down here for many examples of the use of zu, zum, zur which may help you with places. You can also look up any word to find out what gender it is. http://dictionary.reverso.net/german-english/zu
So "zum" or "zur" never go with another article.
"zu" always goes with Dativ. So "zu" never goes with "die" or "das".
Singular(Sg.) maskulinum ("der") and neutrum ("das"): zum Mann, zum Haus
Sg. femininum ("die"): zur Frau
Plural: zu den Häusern
PS: Did I not understand you right, and you meant "go with" as "turn to"?