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Green Imperial Pigeon (Ducula aenea polia) adult perched on branch. Komodo Island, Lesser Sundas, Indonesia. October
Yellow tape measure, combining metric and imperial units. Useful to obtain measure-ments in both scales.
Rear Palace or Hậu Lâu in Imperial Citadel of Thăng Long
Kyoto Imperial Palace with Gonaitei garden in Kyoto, Japan
Trajans column. Ancient Rome cityscape landmark. Roman forum. Italy
Glazed tiles have been used in China since the Tang dynasty as a material for roofs. During the Song dynasty, the manufacture of glazed tiles were standardized in Li Jie's Architecture Standard.

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