No, not an entry called Beautiful Writing, just beautiful writing in general.
The great encyclopedias were carefully crafted, edited and written by professional writers, often some of the best minds who studied a subject, but almost always the writing was beautiful. I picked an example at random to compare with Wikipedia.
Luther, Martin (1483-1546), the great German religious reformer, was born on Nov, 10, 1483, at Eisleben, in the county of Mansfield, wither his parents, Hans Luther and Margaret Ziegler, who belonged to the free peasant class, had migrated from Mohra, in Thuringia..
Martin Luther (German: [ˈmaɐ̯tiːn ˈlʊtɐ] ( listen); 10 November 1483 – 18 February 1546) was a German monk, former Catholic priest, professor of theology and seminal figure of a reform movement in sixteenth century Christianity, subsequently known as the Protestant Reformation.
I looked at many articles to compare the writing, and Wikipedia is often blunt, ugly and drab, even repulsive to read at times. It is the language of a mob, rather than a great mind.
Because beauty exists in the eye of the beholder, this is, of course, my opinion. Another thing you will never find on Wikipedia. You will however, find that I'm entitled to it.