While some sections of the Great Wall are well-preserved, many parts have crumbled over time due to natural erosion, human activity, and lack of maintenance.#ChinaTravel #CruiseLife #CenturyCruises #YesPleaseYangtzeRiverCruise
#ChinaTravel #CruiseLife #CenturyCruises #YesPleaseYangtzeRiverCruise