This description provides information about the total number of World Heritage in Danger Sites as of 2019. The World Heritage in Danger Sites are sites that are listed by the United Nations Educational, Scientific and Cultural Organization (UNESCO) as being in danger due to threats such as armed conflict, natural disasters,
From Wikipedia
World Heritage Sites are landmarks and areas with legal protection under an international treaty administered by UNESCO for having cultural, historical, or scientific significance. The sites are judged to contain "cultural and natural heritage around the world considered to be of outstanding value to humanity".