Public domain
Nanjing, China City Walls
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
The largest city wall in the world is in Nanjing, China. It was built between 1366 and 1386 by the Ming Dynasty Emperor Zhu Yuangzhang to enclose and fortify his capital city. The wall is over 33 km long, is constructed from 350 million bricks, and is 14 meters wide, and 14-20 meters high. Its 13 massive gates today have been restored and house museums telling the story of the city of Nanjing.
NASA Image and Video Library’s own descriptionCredit lineNanjing, China City Walls. NASA/JPL, 2018-10-04. Public domain. ID: PIA22735.
