Contribution of cultural tourism to inclusive economic growth, social development and cultural preservation has been received more attention. The first UNWTO/UNESCO World Conference on Tourism and Culture (Siem Reap, Cambodia) held from 4th to 6th of February provided an unprecedented global platform for policy makers, experts and practitioners in tourism and culture to meet and identify the key challenges and opportunities for stronger cooperation between these highly interlinked areas. OWHC-AP had a lively exchange of ideas and proposals for promoting the network and cooperation of World Heritage cities with high officials and experts. As a result of the meeting, OWHC-AP has reached an agreement with Thai and Cambodian government, which will be the seed of the next joint projects of OWHC-AP!!