- Boundaries--Europe, Central--Maps1
- Boundaries--Europe, Eastern--Russo-Turkish War, 1877-18781
- Boundaries--France--Maps1
- Boundaries--Germany--Maps1
- Boundaries--Hungary--Maps1
- Canals--Florida--Maps1
- Census districts--Italy--Belluno (Province)1
- Census districts--Italy--Venice (Province)--Maps1
- Coal mines and mining--Canada--Maps1
- Coal mines and mining--Northwestern States--Maps1
- Coal--Texas--Maps1
- Coals--Wyoming--Maps1
- Coasts--Newfoundland and Labrador--Newfoundland, Island of--Maps1
- Ethnology--Balkan Peninsula--Maps1
- Ethnology--Caucasus--Maps1
- Ethnology--Europe, Eastern--Maps1
- Ethnology--Germany--Maps1
- Ethnology--Hungary--Maps1
- Ethnology--Romania--Maps1
- Ethnology--Serbia--Maps1