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Geographic Information
- Amherst, Hampshire County, Massachusetts, United States14
- Andover, Oxford County, Maine, United States2
- Barcelona, Spain1
- Blue Hill Reservation, Norfolk County, Massachusetts, United States1
- Bonn, Germany1
- Cambridge, England, United Kingdom1
- Cambridge, Middlesex County, Massachusetts, United States2
- Coppenhagen, Denmark1
- Delaware, Delaware County, Ohio, United States1
- Denmark1
- Elgin, Cook County, Illinois, United States1
- Evanston, Cook County, Illinois, United States2
- Fall River, Bristol County, Massachusetts, United States3
- Flagstaff, Coconino County, Arizona, United States8
- France2
- Geneva, Ontario County, New York, United States1
- Grand Canyon National Park, Arizona, United States2
- Hale Observatories, San Diego County, California, United States10
- Hamburg, Germany1
- Hudson, Summit County, Ohio, United States1