Photo taken on Dec. 15, 2020 shows a train driver chocolate statue at the Choco Loco exhibition at the Train World Museum in Brussels, Belgium. The Choco Loco is an exhibition at which chocolate sculptures inspired by train-related subjects are displayed. (Xinhua/Zheng Huansong)

Photo taken on Dec. 15, 2020 shows a chocolate sculpture at the Choco Loco exhibition at the Train World Museum in Brussels, Belgium. The Choco Loco is an exhibition at which chocolate sculptures inspired by train-related subjects are displayed. (Xinhua/Zheng Huansong)

Visitors watch a chocolate sculpture at the Choco Loco exhibition at the Train World Museum in Brussels, Belgium, on Dec. 15, 2020. The Choco Loco is an exhibition at which chocolate sculptures inspired by train-related subjects are displayed. (Xinhua/Zheng Huansong)

Photo taken on Dec. 15, 2020 shows a chocolate sculpture at the Choco Loco exhibition at the Train World Museum in Brussels, Belgium. The Choco Loco is an exhibition at which chocolate sculptures inspired by train-related subjects are displayed. (Xinhua/Zheng Huansong)

Photo taken on Dec. 15, 2020 shows a chocolate sculpture at the Choco Loco exhibition at the Train World Museum in Brussels, Belgium. The Choco Loco is an exhibition at which chocolate sculptures inspired by train-related subjects are displayed. (Xinhua/Zheng Huansong)