People 'perched themselves' on the railing [=people sat on the railing] to get a better view.
He stood there in his coat, a small hat 'perched' on/atop his head.
The castle 'is perched' high in/among the hills of Scotland.
(..) George, would you help me, please? Yes. This is wrong. Sing it, sister! Just because a candy bar fails to fall from its perch-- Oh, God. --does not imply transfer of ownership. Mo, Sol or Lem is not gonna get away with this. (..)1998 TvShow: Seinfeld Title: The Dealership Season: 9 Episode 11