Inside Sikkim's Khangchendzonga National Park, a UNESCO wonder

Sikkim's Khangchendzonga National Park, a UNESCO World Heritage Site spanning 1,784 sq km, stretches from low valleys to snowbound summits, including Mount Khangchendzonga, the world's third-highest peak. According to Incredible India, it holds about 19 Himalayan peaks, 18 glaciers and 17 alpine lakes, along with dense forests and sacred monasteries that draw nature lovers and trekkers alike.