Colombia is a country in northern South America with 45 million inhabitants. Neighboring countries are Panama, Venezuela, Brazil, Peru and Ecuador. The republic has a coastline with two seas. In the north along the Caribbean Sea and in the west to the Pacific Ocean. The landscape is largely determined by the big three Andean mountain ranges and high plains. Furthermore, the Amazon, the Orinoco region, savanna areas, rivers and tropical rainforest. In the coastal areas are also mangrove forests. There is mainly a tropical rainy climate. In the east a savanna environment. In the mountains it is cooler. The capital, Bogota has 7 million inhabitants. Bogotá is a modern city with high-rise. But Republican colonial churches and houses. Places are the Plaza Bolivar, the Palacio San Carlos, the National Museum and the Gold Museum. Other major cities are Medellín, Santiago de Cali, Barranquilla, Cartagena, Cucuta, Bucaramanga, Pereira, Santa Marta and Ibague. On the list of UNESCO world heritage, the fortifications, the port and a group of monuments in Cartagena, Los Katios National Park, the historic center of Santa Cruz de Mompox, the reserve Malpelo and archaeological parks Tierradentro and San Agustín. Other attractions include the Salt Cathedral, the White City Popoayan and Philippe castle.