Rio de Janiero is a Vesper stronghold. It is planned to be Medusa's active base, but it is a huge base, covering the entire "Lagoa de Jacarepagua". It is an underwater base and is very luxurious and it looks bigger than it is. It has a total of 136,412,952 rooms, making it the sixth biggest Vesper base. It is also the residence of The Black Vesper.