Photo taken on Nov. 16, 2013 shows burial objects in the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Photo taken on Nov. 16, 2013 shows the passage leading to the tomb of Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Photo taken on Nov. 16, 2013 shows pottery figurines excavated from the tomb of Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

Photo taken on Nov. 16, 2013 shows a pottery figurine excavated from the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

Photo taken on Nov. 16, 2013 shows a pottery figurine excavated from the tomb of Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

Aerial photo taken on Nov. 16, 2013 shows the tombs of Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), and his wife Empress Xiao, in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

Photo taken on Nov. 16, 2013 shows the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

TV reporters do a stand-up by the tomb belonged to Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province, Nov. 16, 2013. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Photo taken on Nov. 16, 2013 shows a porcelain inkslab excavated from the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

Photo taken on Nov. 16, 2013 shows a knocker-holder excavated from the tomb of Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

Photo taken on Nov. 16, 2013 shows a bronze percussion instrument called "Qing" excavated from the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

 Photo taken on Nov. 16, 2013 shows remains and burial objects in the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Workers clean the tomb belonged to Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province, Nov. 16, 2013. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Photo taken on Nov. 16, 2013 shows the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Archaeologists work in the tomb belonged to Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province, Nov. 16, 2013. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Archaeologists work in the tomb belonged to Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province, Nov. 16, 2013. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Photo taken on Nov. 16, 2013 shows remains and burial objects in the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Photo taken on Nov. 16, 2013 shows remains and burial objects in the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua/Sun Can)

 

Photo taken on Nov. 16, 2013 shows a gold-jade belt excavated from the tomb of Yang Guang, or Emperor Yang of Sui, the second and last monarch of the short-lived Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)

 

Photo taken on Nov. 16, 2013 shows a bronze bell excavated from the tomb of Empress Xiao, the wife of Emperor Yang Guang of Sui Dynasty (581-618), in Yangzhou, East China's Jiangsu Province. The tombs which were unearthed at a construction site in Yangzhou earlier this year have been confirmed to be the final resting place of Emperor Yang of Sui, known for his tyrannous reign about 1,500 years ago, and Empress Xiao. (Xinhua)