The major city known for hosting the annual Carnival festival is Rio de Janeiro, Brazil. This vibrant celebration occurs before Lent and draws millions of participants and tourists. Rio's Carnival is famous for its elaborate parades, samba music, and extravagant costumes, embodying Brazilian culture's festive spirit. The event is not only a significant social gathering but also an economic powerhouse, boosting local tourism and industries. The pageantry, energy, and communal atmosphere during Carnival reflect the rich diversity and cultural heritage of Brazil.