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  1. 21-30 sites. 31+ sites. trans-national sites. national sites. The United Nations Educational, Scientific and Cultural Organization ( UNESCO) has designated 171 World Heritage Sites in Western Europe (including international dependencies).

  2. World Heritage partnerships for conservation. Ensuring that World Heritage sites sustain their outstanding universal value is an increasingly challenging mission in today’s complex world, where sites are vulnerable to the effects of uncontrolled urban development, unsustainable tourism practices, neglect, natural calamities, pollution, political instability, and conflict.