The Champs-Elysees Avenue and the Arc de Triomphe are seen after the Christmas illuminations were switched on in Paris, France, Nov. 22, 2020. The lighting ceremony was held on Sunday, but no audience was allowed on site due to lockdown measures against the COVID-19 pandemic. (Xinhua/Gao Jing)

The Champs-Elysees Avenue and the Arc de Triomphe are seen after the Christmas illuminations were switched on in Paris, France, Nov. 22, 2020. The lighting ceremony was held on Sunday, but no audience was allowed on site due to lockdown measures against the COVID-19 pandemic. (Xinhua/Gao Jing)

The Champs-Elysees Avenue and the Arc de Triomphe are seen after the Christmas illuminations were switched on in Paris, France, Nov. 22, 2020. The lighting ceremony was held on Sunday, but no audience was allowed on site due to lockdown measures against the COVID-19 pandemic. (Xinhua/Gao Jing)

The Champs-Elysees Avenue and the Arc de Triomphe are seen after the Christmas illuminations were switched on in Paris, France, Nov. 22, 2020. The lighting ceremony was held on Sunday, but no audience was allowed on site due to lockdown measures against the COVID-19 pandemic. (Xinhua/Gao Jing)

The Champs-Elysees Avenue and the Arc de Triomphe are seen after the Christmas illuminations were switched on in Paris, France, Nov. 22, 2020. The lighting ceremony was held on Sunday, but no audience was allowed on site due to lockdown measures against the COVID-19 pandemic. (Xinhua/Gao Jing)