The Fortaleza de São Pedro is a historic fortress located in Rio de Janeiro, Brazil. Built in the 18th century, it was designed to protect the city from naval attacks. The fortress features thick stone walls and strategic positioning overlooking the Guanabara Bay, making it a significant military structure of its time. Today, the fortress is a popular tourist attraction, offering visitors a glimpse into Brazil's colonial past. It is part of the Museu Histórico Nacional and provides educational exhibits about the country's history and military architecture. The site also offers stunning views of the surrounding landscape.