This trip to Prince Gong's Mansion was made possible thanks to our guide, Zhang Yingying. Her explanations were excellent, narrating the story from Heshen to Prince Gong in detail, and explaining the mansion's three unique features and one treasure, as well as the symbolism of the garden layout. Her language was humorous and easy to understand. She took care of us elderly folks throughout the trip, stopping appropriately for photos and rest, and the route was well-planned. There were no forced purchases, just pure, informative content. If you're visiting Prince Gong's Mansion, definitely hire Guide Zhang!