The highest mountain in the Southern Hemisphere is Aconcagua, which stands at approximately 6,961 meters (22,838 feet) above sea level. Located in the Andes mountain range in Argentina, Aconcagua is not only the tallest peak in South America but also the tallest outside of Asia. Its prominence makes it a popular challenge for climbers from around the world, who seek to summit this majestic peak, often attracting adventure enthusiasts and experienced mountaineers alike.