Once the portal of entry, may be seen extensive gardens in the French style in the middle of fountains, waterfalls and lakes, and the main greenhouse of 458 square meters, which holds in its interior, copies plants characteristic of tropical regions. It rolls out its carpet of flowers to the visitors right at the entrance, between 6 geometric gardens (each one illuminated by chandeliers with Republican-style, each with five lanterns), each with 4 flowerbeds - totaling 24 flowerbeds - enclosed by buxaceae and adorned with seasonal flowers. This occupies 278.000 m² in area. The principal greenhouse, with three domes, in an art nouveau style with a modern metallic structure, looks like the mid-19th century Crystal Palace in London, England. The Botanic Museum, which provides a national reference collection of native flora, attracts researchers from all over the world. It includes many botanic species from the moist Atlantic Forests of eastern Brazil. 