Tijuca National Park

The Tijuca Forest (Portuguese: Floresta da Tijuca) is a tropical rainforest in the city of Rio de Janeiro, Brazil. It is claimed to be the world's largest urban forest, covering some 32 km² (12.4 mi²), although there are sources assigning this title to the urban forest of Johannesburg, South Africa, where between 6 and 9.5 million trees were planted.