Cuba is the largest island in the Caribbean and is located at the entrance of the Gulf of Mexico. It is an archipelago consisting of the main island of Cuba, the Isla de la Juventud, and about 4,000 smaller islets. Havana is the capital and largest city, famous for its colonial architecture and vintage cars. Cuba's geography is mostly flat or rolling plains, with several mountain ranges, the most notable being the Sierra Maestra in the southeast. The country has a tropical climate, moderated by trade winds, and is prone to hurricanes. Cuba is world-famous for its tobacco, used to make premium cigars, and its sugar industry. Historically, it was a Spanish colony for 400 years before becoming a center of the Cold War following the 1959 Revolution. The island is known for its vibrant music, dance, and a healthcare system that produces a high number of doctors per capita.