Pieces of antique porcelain recovered from a shipwreck in the Xisha Islands in the South China Sea are on display at the Capital Museum in Beijing, capital of China, Aug. 22, 2013. An exhibition featuring some 280 findings from the shipwreck on Huaguang Reef No.1 opened Thursday at the museum. The wreck, dating back to the Southern Song Dynasty (1127-1279), was stumbled upon by a group of Chinese fishermen in 1996, three meters below sea water. (Xinhua/Luo Xiaoguang)

The head of a sculpture recovered from a shipwreck in the Xisha Islands in the South China Sea is on display at the Capital Museum in Beijing, capital of China, Aug. 22, 2013. An exhibition featuring some 280 findings from the shipwreck on Huaguang Reef No.1 opened Thursday at the museum. The wreck, dating back to the Southern Song Dynasty (1127-1279), was stumbled upon by a group of Chinese fishermen in 1996, three meters below sea water. (Xinhua/Luo Xiaoguang)

Pieces of antique porcelain recovered from a shipwreck in the Xisha Islands in the South China Sea are on display at the Capital Museum in Beijing, capital of China, Aug. 22, 2013. An exhibition featuring some 280 findings from the shipwreck on Huaguang Reef No.1 opened Thursday at the museum. The wreck, dating back to the Southern Song Dynasty (1127-1279), was stumbled upon by a group of Chinese fishermen in 1996, three meters below sea water. (Xinhua/Luo Xiaoguang)

Visitors view pieces of antique pottery and porcelain recovered from a shipwreck in the Xisha Islands in the South China Sea at the Capital Museum in Beijing, capital of China, Aug. 22, 2013. An exhibition featuring some 280 findings from the shipwreck on Huaguang Reef No.1 opened Thursday at the museum. The wreck, dating back to the Southern Song Dynasty (1127-1279), was stumbled upon by a group of Chinese fishermen in 1996, three meters below sea water. (Xinhua/Luo Xiaoguang)