"Standing here, I can feel the weight of history, but also see how far we've come," he said, looking out over the Haihe River and the evolving city skyline.

Han recalled one particularly emotional tour last October, when an elderly visitor extended his stay to over two hours, visibly moved by old wartime photographs.

"When narrating the old photographs in our exhibit, I saw tears in his eyes and heard the choke in his voice," she said. "As a guide, I realize that my role is not just to impart knowledge but to help visitors reflect on our revolutionary past and appreciate our country's strength. I am committed to carrying forward this important mission."

Zang Yifan and Zhang Yiwen contributed to this story.