Lipizzaner horses perform during the Lipizzaner Christmas Ball at State Stud Farm in Dakovo, eastern Croatia, Dec. 14, 2019. The Lipizzaner Christmas Ball is a Baroque musical-stage show with Lipizzaner horses. (Davor Javorovic/Pixsell via Xinhua)

Lipizzaner horses perform during the Lipizzaner Christmas Ball at State Stud Farm in Dakovo, eastern Croatia, Dec. 14, 2019. The Lipizzaner Christmas Ball is a Baroque musical-stage show with Lipizzaner horses. (Davor Javorovic/Pixsell via Xinhua)

Lipizzaner horses perform during the Lipizzaner Christmas Ball at State Stud Farm in Dakovo, eastern Croatia, Dec. 14, 2019. The Lipizzaner Christmas Ball is a Baroque musical-stage show with Lipizzaner horses. (Davor Javorovic/Pixsell via Xinhua)

Lipizzaner horses perform during the Lipizzaner Christmas Ball at State Stud Farm in Dakovo, eastern Croatia, Dec. 14, 2019. The Lipizzaner Christmas Ball is a Baroque musical-stage show with Lipizzaner horses. (Davor Javorovic/Pixsell via Xinhua)

Lipizzaner horses perform during the Lipizzaner Christmas Ball at State Stud Farm in Dakovo, eastern Croatia, Dec. 14, 2019. The Lipizzaner Christmas Ball is a Baroque musical-stage show with Lipizzaner horses. (Davor Javorovic/Pixsell via Xinhua)