At the end of Rue des Francs-Bourgeois is what many consider to be the city's most handsome residential square, the Place des Vosges, with its stone and red brick facades.
The place des Vosges is the city's largest business district. 
mnli hypothesis: The place des Vosges is the city's largest business district.  premise: At the end of Rue des Francs-Bourgeois is what many consider to be the city's most handsome residential square, the Place des Vosges, with its stone and red brick facades.