For each Surface in the list, there is a Viewer in the Facade Navigator which displays the location of that Surface on the Façade. By holding down the right mouse button, you may orbit inside this viewer to navigate around. The mouse wheel allows zooming in and out. Holding down the mouse wheel allows panning side to side.
A Curtain Wall that extends over several floors will have a Surface for each floor level. The Viewer assists in locating the glazing element and it will also be highlighted on the Revit model.