6,962 m / 22,841 ft
Climbing season is December - February
Not only the tallest mountain in the Andes, Aconcagua is the highest mountain outside the Himalaya. Though not particularly technical, it will definitely test your endurance. You'll climb over 4,000 vertical meters and spend 10-17 days on the mountain, so make sure to call mom before you leave. The expedition will cost about $5,000. Bring lots of cash - the unofficial exchange rate in Mendoza will give you 50% more buying power than your Visa. The mules will take your bags as far as Plaza de Mulas. After Mulas you can hire porters, who will charge about $700 to get your bag to high camp. Make good use of the bathrooms in Confluencia and Plaza de Mulas. Any post-Mulas poop has to be hiked out in bags, which is extra heavy if you just ate llama or chorizo. Also, keep your eyes peeled for the bridge near the beginning. It was built for Brad Pitt's 1997 movie Seven Years in Tibet.