Group 1 - Changchun is often perceived as a quiet city in Northeast China, with some suggesting that the best activity is to buy a ticket to Harbin or Shenyang [1] - The city has a rich historical background, once known as Asia's largest city, and is the birthplace of significant Chinese inventions and cultural milestones, including the first domestic car and the first film studio [3] - Changchun's architecture is characterized by grandeur and a well-planned layout, with abundant greenery and numerous parks enhancing its appeal [7] Group 2 - The local culture is vibrant, with a warm and welcoming atmosphere, contrasting with the cold and reserved nature often associated with Northern Europe [9] - The city offers various attractions, such as the National Forest Park, which is ideal for outdoor activities and enjoying nature [11][13] - The World Sculpture Park features thousands of sculptures from over 200 countries, making it a paradise for art lovers [17] Group 3 - The Puyi Museum, located in the former puppet palace, provides insights into the life of the last emperor of China and is a significant historical site [19] - South Lake Park is referred to as the "urban lung" of Changchun, offering a serene environment for relaxation and social activities [21] - Local cuisine includes popular dishes such as Guo Bao Rou, Di San Xian, and Changchun-style barbecue, known for their unique flavors and preparation methods [24]