The longest mountain range in the world is the Andes. The Andes stretch along the western coast of South America, spanning over 7,000 kilometers (about 4,300 miles) and passing through seven countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. This mountain range is known for its diverse ecosystems, rich biodiversity, and significant cultural heritage, hosting various indigenous communities. The Andes contain some of the highest peaks in the world, including Aconcagua, which is the tallest mountain outside of Asia. Its geological formation is a result of tectonic plate movements, making it one of the most remarkable natural features.