The giant Christmas tree is seen as the festive illuminations are unveiled at Galeries Lafayette department store in Paris, France, Nov. 24, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen from the glass walk, which is nine-metre-long and 16-metre-high in air, at Galeries Lafayette department store in Paris, France, Nov. 14, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen as the festive illuminations are unveiled at Galeries Lafayette department store in Paris, France, Nov. 24, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

People take photos on the glass walk for the giant Christmas tree as the festive illuminations are unveiled at Galleries Lafayette department store in Paris, France, Nov. 24, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen at Galeries Lafayette department store in Paris, France, Nov. 14, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen as the festive illuminations are unveiled at Galeries Lafayette department store in Paris, France, Nov. 24, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen at Galeries Lafayette department store in Paris, France, Nov. 14, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen as the festive illuminations are unveiled at Galeries Lafayette department store in Paris, France, Nov. 24, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen at Galeries Lafayette department store in Paris, France, Nov. 14, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen from the glass walk, which is nine-metre-long and 16-metre-high in air, at Galeries Lafayette department store in Paris, France, Nov. 14, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen from the glass walk, which is nine-metre-long and 16-metre-high in air, at Galeries Lafayette department store in Paris, France, Nov. 14, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen as the festive illuminations are unveiled at Galeries Lafayette department store in Paris, France, Nov. 24, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)

The giant Christmas tree is seen at Galeries Lafayette department store in Paris, France, Nov. 14, 2019. A giant Christmas tree stands at the Galeries Lafayette department store for the festive season. (Xinhua/Gao Jing)