on this link, published by the fundação centro estadual de estatistica, pesquisa e formação de servidores publicos do rio de janeiro - ceperj, this map combines a view of all regions of the state, all municipalities, roads, ports, airports, rivers, parks, and natural reserves.

on this link, published by the fundação centro estadual de estatistica, pesquisa e formação de servidores publicos do rio de janeiro - ceperj, this map shows how the municipalities in rio de janeiro evolved since the year 1500 - the colored areas show the period of municipal creation, with the arrows showing which municipality was born from which.