Xi'an is an ancient capital of China. It is proudly guarded by its historic city wall. From Wikipedia (link),
The fortifications of Xi'an represent one of the oldest and best preserved Chinese city walls. Construction of the first city wall ofChang'an began in 194 BCE and lasted for four years. The existing wall was started by the Ming Dynasty in 1370. It encircles a much smaller city of 14 square kilometres (5.4 sq mi).
Locals and tourists alike bike atop the wall ....
.... what a great way to see the city!
We loved walking atop history!
Kim in Korea