The Qianmen Gate (Front Gate) is also known as the Zhengyang Gate. It was built in 1420 in the early Ming Dynasty. (While the Hundred Years War was underway, the Mongol Horde ruled Russia, and Gutenberg was getting ready to print the Bible.) Qianmen rises to a height of 42 meters which made it one of the tallest buildings in ancient China. It is the best preserved ancient tower still standing.