Do you find the use of 她 here unusual?
A famous city, in history known for its culture, uses its (her) former glory and today's ever-increasing prosperity to make clear to everyone.
it (she) is absolutely not, as some people misunderstand,
like an old woman who has lost her youth;
On the contrary,
a famous city, like a tree grown on the fertile land of ancient, profound culture,
certainly can produce many branches and abundant foliage, evergreen and everlasting.
The article also refers to 黄河 with 她:
Could be 3 typos, but I doubt it. In German, city is feminine, but river is masculine.