UNESCO's Director-General Audrey Azoulay speaks during an event marking the 25th anniversary of the founding of the International Coordinating Committee for the Safeguarding and Development of the Historic Site of Angkor (ICC-Angkor) in Siem Reap, Cambodia, on Dec. 4, 2018. Cambodia celebrated here on Tuesday the 25th anniversary of the founding of the ICC-Angkor. (Xinhua/Sovannara)