Vantage points #19, #20: Kinetoscopes
Hall of Heroes Gift Shop - in the gift shop's vestibule.
Vantage point #21: Kinetoscope - A City Mourns...
Hall of Heroes Gift Shop - near a round counter in the middle of the room. A copy of this kinetoscope can also be found near the First Lady airship, however it's not treated as a vantage point.
Vantage point #22: Telescope
Worker Induction Center - a platform at the gondola station.
Vantage point #23: Kinetoscope - The Path of the Vox Populi...
Worker Induction Center - in a corridor located to the left of the statue in the main room.