Sailed by Tom Sharp

I stood on the tower long after my old friend had gone and watched his sail disappear where the Yangtze merged with the sky.

黄鹤楼送孟浩然之广陵 by 李白 (Li Bai)

故人西辞黄鹤楼，烟花三月下扬州。 孤帆远影碧空尽，唯见长江天际流。