The Museu Histórico Nacional (MHN) is a free museum that tells the story of Brazil's rich history. Located in a historic fort, the museum showcases a wide range of artifacts, documents, and artworks that depict the country's past. Visitors can explore the various exhibitions, which cover topics such as colonization, slavery, independence, and the Brazilian monarchy. MHN also offers guided tours and educational programs, providing visitors with a deeper understanding of Brazil's cultural heritage.