4. Machu Picchu (Peru)
Perched high in the Andes, Machu Picchu faces mounting threats from increased rainfall and landslides. The delicate stonework of this ancient Incan citadel is particularly vulnerable to soil erosion and shifting ground. As weather patterns grow more unpredictable, the risk to this UNESCO World Heritage site intensifies. Other mountainous heritage sites, such as those in Nepal and Bhutan, encounter similar dangers, reinforcing how climate change endangers our most treasured high-altitude wonders.
