Columbia subject headings:
China--Description and travel.
China--History.
Great Wall of China (China)
Great Wall of China (China)--Description and travel.
Travel writing.
Harvard subject headings:
China--Description and travel
China--History
Great Wall of China (China)
Great Wall of China (China)--Description and travel.
Princeton subject headings:
China--Description and travel.
China--History.
Great Wall of China (China)
Great Wall of China (China)--Description and travel.
Travel writing.