sentences:  However, in order make use of the conservation concepts achived by the UNESCO networks, the Bureau of Cultural Heritage under the Ministry of Culture began in 2002 to compile a list of potential world heritage sites in Taiwan with currently 18 entries.Tourists mainly arrive by air and Taoyuan International Airport serves as the most popular airport bringing international tourists into Taiwan as it is the largest airport in Taiwan and important regional hub.Other major airports in Taiwan which facilitate international visitors include Kaohsiung International Airport servicing southern Taiwan, Taichung Airport servicing central Taiwan and Taipei Songshan Airport servicing central Taipei.