A handout made available by the Cascais, Portugal, city government shows an archaeologist during a dive at a discovered shipwreck near Cascais on Sept. 6. The ship, which sank between 1575 and 1625, was found Sept. 3 off the Portuguese coast near the mouth of the Tagus river. Photo: VCG

A diver examines a cannon on the sunken ship. Photo: VCG

Porcelain pieces that date back to China’s late Ming Dynasty (1368-1644) were found at the shipwreck. Photo: VCG

Porcelain pieces that date back to China’s late Ming Dynasty (1368-1644) are found at the shipwreck. Photo: VCG

Tourists at Cascais, Portugal, look at a photo exhibit of the shipwreck. Photo: VCG