Ａｎ　Ａｓｔｒｏｎｏｍｅｒ’ｓ　Ｔａｌｅ

ＴＡＮＧ　ＹＵＡＮＫＡＩ

Few visitors to Beijing would think the area around Beijing Railway Station a niceplace to linger after seeing the station flooded with crowds of passengers. Yet a brick build-ing nearby, one of world's oldest observatories, is well worth a tour.