A museum about the reign of Emperor Pedro I (1822-1831), but with a modest collection.
Estádio do Maracanã
Once the world's highest capacity football venue, it was able to hold nearly 200,000 people. In modern times, the capacity has been reduced because of safety considerations, and the introduction of seating for all fans. It is undergoing renovation, to expand it to hold 80,000. The matches of Rio's football clubs like Flamengo or Fluminense are usually far from full, so go along and watch a game. There is also a Soccer Museum inside.
Parque Nacional da Tijuca, Sector Florestal
A few km north of the beach, this mountainous subtropical forest is Brazil's smallest national park. It is largely hand-planted as much of the original forest was destroyed to make way for coffee plantations. Despite this it contains hundreds of species, many of which are threatened with extinction. Corcovado is to the east of the park but if you really want to appreciate what the park has to offer you have to drive along some windy, hilly roads and get out and hike. This sector of the park can be reached via Rua Boa Vista, and from São Conrado in Zona Oeste.
Estádio do Engenhão
Estádio Olímpico João Havelange, known by its nickname of Engenhão, is a new soccer stadium built for the Pan-American Games of 2007. A modern construction, not as big as Maracanã but still worth a visit for soccer fans. The Botafogo team plays its matches there.
Parque Estadual do Grajaú
This 55-hectare park preserves some of the original forest and serves as a refuge for a wide range of species including marmosets, bush dogs, guinea pigs, parakeets, vultures, and hawks. The park includes the Pedra do Andaraí, symbol of the area.
Museu de Astronomia e Ciências Afins (MAST)
Also has an observatory.
If you won't be making it to the Amazon or the Pantanal, this is a good place to see some of Brazil's more exotic creatures.