UNESCO World Heritage Centre - State of Conservation (SOC 2014

The significant number of reports prepared by the UNESCO Secretariat and the Advisory Bodies to the World Heritage Committee represents an exceptional documentation on numerous conservation issues. It is one of the most comprehensive monitoring systems of any international conventions.

UNESCO World Heritage Centre - State of Conservation (SOC 2019

UNESCO World Heritage Centre - State of Conservation (SOC)

UNESCO World Heritage Centre - State of Conservation (SOC 2016

World Heritage Site - Wikipedia

The reverse side of the medal

World Heritage Site - Wikipedia

San Antonio Missions & Alamo Now a World Heritage Site

State of conservation of Venice and its lagoon (Italy) - UNESCO

The World's Heritage' co-published by UNESCO and Harper Collins

Second Cycle of Periodic Reporting in Europe - UNESCO World

List of World Heritage Sites in Iraq - Wikipedia

3rd edition of 'The World's Heritage' by UNESCO Publishing and

Heritage, Free Full-Text

UNESCO World Heritage Centre - World Heritage

UNESCO World Heritage Centre - State of Conservation (SOC)