As Discovery News points out in their coverage, destroyed sites are marked with black spots, sites at immediate risk of destruction (rescue-needed) are red, at-risk sites orange and stable ones are marked with green.

So far, 40 of the 80 sites identified as rescue-needed have been supported with threat-and-planning support documents. Those sites include Great Zimbabwe, the old city of Damascus in Syria, Samarra in Iraq and Antigua Guatemala.

The value of saving and stabilizing these sites is not strictly intellectual and cultural. An earlier Global Heritage Network report estimated a $100 billion boon in tourism dollars annually by 2025 could result from preservation of the sites in its database.