When autumn meets the Republic of China style, you get the Shuai Mansion's Big Green Building.

The Shuai Mansion has two famous green brick buildings, one of which is the imposing European-style Big Green Building. The Big Green Building was the highest point in Fengtian City during the Republic of China period, with magnificent three-dimensional reliefs on the exterior, making it a classic of the time. It is located in the courtyard on one side of the Shuai Mansion, contrasting with the Chinese-style courtyard building on the other side of the wall. The courtyard of the Big Green Building has a large garden with tall rockeries, trees, and small waterfalls. The door on the south side of the rockery is inscribed with a plaque written by Zhang Zuolin, and passing through the rockery and up the steps, you enter the building, which was the office of Zhang Zuolin and Zhang Xueliang, a place of great events during the Republic of China period, where many important events took place, including the execution of Yang Yuting and two other Fengxi bigwigs in the Tiger Hall. In addition to historical events, the building also houses Zhang Xueliang's collection of paintings, calligraphy, and porcelain, and interestingly, the exhibits also include Mickey Mouse elements that Zhang Xueliang liked.