Thai Nguyen is a city in northern Vietnam, located in the Red River Delta region. It is known for its beautiful landscapes, including the Nui Coc Lake, and its rich cultural heritage, with many ancient temples and pagodas. It is also home to the Thai Nguyen Tea Museum, which showcases the history of tea production in the region. Visitors can also explore the nearby Ba Vi National Park, which is home to a variety of wildlife and stunning views.