products on local markets, but they begin to organize and a few open their workshops to the tourists too; wineries: some vineyards have incredible landscapes and the wines produced here have a well established and long tradition. Wine tourism provides presentations of the technologies and the storage caves, and is well developed in Romania. Famous big wineries: Murfatlar, Cotnari, Dragasani, Recaș, Prahova Valley, Odobesti, Husi, Cricova (near Chisinau, in the Republic of Moldova, is huge, with about 80 kilometres of tunnels and caves) Infrastructure There are 16 international commercial airports in service today. Overall, airports in the country were transited in 2016 by 16.4 million passengers. The largest number of passengers was attracted by Bucharest's Henri Coandă International Airport, which closed the year with a traffic of almost 11 million passengers. Romania also has a large network of railways, CIA World Factbook lists Romania with the 22nd largest railway network in the world. The railway network is significantly interconnected with other European railway networks. See also UNESCO World Heritage Sites in Romania Castles in Romania Protected areas of Romania Transportation in Romania Aviation in Romania Seven Natural Wonders of Romania Seven Manmade Wonders of Romania References Further reading Tourism in the New Europe: The Challenges and Opportunities of EU Enlargement. pp. 256–265. OECD Tourism Trends and Policies 2012. pp. 397–402 The Report: Romania 2008. pp. 98–100. Geography of Travel and Tourism. pp. 286–287. Yahoo News article The Financial Times article International Medical Travel Journal article External links Official Tourism Site of Romania Rolandia – Romanian travel agency that blogs about the country's landmarks, history, and culture Economy of Romania Industrial tourism Romania