1423 These Qing dynasty bricks are at the level of floodwaters in 1870 - the sort of catastrophic flood that the dam is supposed to protect against

1423 These Qing dynasty bricks are at the level of floodwaters in 1870 - the sort of catastrophic flood that the dam is supposed to protect against.jpg

1423 These Qing dynasty bricks are at the level of floodwaters in 1870 - the sort of catastrophic flood that the dam is supposed to protect against