As a result of their topographical and climatic differences, the Colombian Andes are one of the most diverse areas in South America. The landscape features a number of agricultural areas, snow-capped mountains in the Coffee Zone and Boyacá, green coffee landscapes and fertile plateaus where one can find potato and wheat fields. The Colombian part of the Andes consists of three foothills that rise parallel in a north-southerly direction. The valleys are crossed by the Magdalena and Cauca rivers. This area is home to most of the large urban centers of Colombia. Bogotá DC, the most important city of Colombia, is the political, cultural and economic centre of the country. The diversity in history, culture and landscape of this area is impressive: small colonial cities, archaeological sites, coffee haciendas, large cities, snow-capped mountains and a large variety of different climate zones and vegetation make this area a destination that offers many different opportunities to be explored.