Scenery in Stockholm County, Sweden(1/13)

Tourists visit the Drottningholm Palace in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Tourists visit the Baroque Garden of Drottningholm Palace in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

The woods and fallen leaves are seen in the Baroque Garden of Drottningholm Palace in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Tourists walk in the Baroque Garden of Drottningholm Palace in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Tourists visit the Drottningholm Palace in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Photo shows tree leaves turned yellowish in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Scenery of Gamla Stan is seen in Stockholm, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

A passenger walks on the platform of a metro station in Stockholm, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Tourists walk in the Baroque Garden of Drottningholm Palace in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Passengers wait for the train on the platform of a metro station in Stockholm, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

Tourists walk in the Baroque Garden of Drottningholm Palace in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)

The sunset is seen on an autumn day in Stockholm, Sweden, Oct. 7, 2019. (Xinhua/Zheng Huansong)

Tourists rest on a bench in Stockholm County, Sweden, Oct. 11, 2019. (Xinhua/Zheng Huansong)