I've made a KMZ file containg placemarks for all the five above mentioned objects:

*) three slogans (including 'Long Live Chairman Mao!')
*) the airport
*) the strange structure to the south

However, the latter seems to be a bug in Google Earth database, and not a real structure. One of the rectangular images in the quilt on globe is corrupted. I cannot think of any other reason for this 1040x1820 meters rectangular area to have such a... shape.