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  1. Historic Aerials: Viewer

  2. 5 Free Historical Imagery Viewers to Leap Back in the Past

  3. EarthExplorer

  4. Historical Maps at Your Fingertips | U.S. Geological Survey - USGS.gov

  5. OpenAerialMap

  6. Get Maps - USGS Topoview

  7. Historical Topographic Maps - Preserving the Past

  8. USGS EROS Archive - Aerial Photography - Aerial Photo Single Frames

  9. Explore an Interactive Aerial Map of the Past - Atlas Obscura

  10. Historic Aerials