장자커우 (Zhangjiakou) is a city located in the northern part of China, specifically in Hebei Province. It is known for its rich history and beautiful natural scenery, including mountains and rivers. The city has been an important cultural and economic center for centuries, serving as a hub for trade and transportation. In recent years, 장자커우 gained international attention as a co-host city for the 2022 Winter Olympics. The area is famous for its winter sports facilities, making it a popular destination for skiing and snowboarding enthusiasts. Its development for the Olympics has also boosted local tourism and infrastructure.