Of course the vanishing point is the point in a perspective drawing where parallel lines seem to converge. Vanishing points, as a technique for leading the eye to where you want it go, were first used in the Renaissance by Donatello and Masaccio and the like. This was a big revolution back then - a new thing in art. Paintings suddenly had the illusion of depth. The world of art changed. It seems kind of obvious now, but one tends to forget that someone had to be the first to figure it out and draw the lines to set things up.
This is the west coast headquarters of CNN on Sunset Boulevard, as seen, down an alley, from Hollywood Boulevard, Friday, September 1, mid-afternoon. Larry King is in there somewhere taping his evening show. That's the vanishing point.