Documents, entry requirements & customs (visas, etc)
Detailed information necessary for foreigners who want to visit Brazil and Rio de Janeiro in particular could be found here.
Money and currency
Brazilian real (symbol: R$) is the present-day, national currency of Brazil.
Health and travel insurances
A good travel and health insurance in case of any accidents or sickness during the stay in Rio de Janeiro, in particular, in Rio de Janeiro is required.