The Peruvian highlands (sierra) are widely dominated by the Andes region, which extends through 7 other countries. The highlands are home to some of the tallest mountains in the world and the region is also widely known for Machu Picchu, one of the seven wonders of the world. The climate can vary to a great extent due to differences in altitude. With its rich history and culture, the highlands and Andes of Peru have cultivated plenty of the country's agricultural practices and plant life. Click here or here to learn more.