at a glance

this map shows all neighborhoods in rio de janeiro, grouped by city zone and color coded - zona west in pink, zona north in green, zona sul in light green, and zona central in beige. 

on this link by wikimapia it is possible to see a  satellite view of the district of cidade nova.

rio de janeiro's prefecture, through the instituto pereira passos, makes data and statistics about the neighborhood of  cidade nova available on this link, including data on land (território e meio ambiente), population (população) housing (domicílios), health (saúde), education (educação), buildings (imóveis), and infrastructure (infraestrutura).