Géoportail: France's official map portal: IGN maps, aerial photos, cadastre and history. Konjaku Map on the Web: Compare old Japanese topographic maps with today, side by side.
| Géoportail | Konjaku Map on the Web | |
|---|---|---|
| Category | Map Platforms & National Atlases | Historical & Old Maps |
| Coverage | France | Japan |
| Updates | Periodically | Static archive |
| Data source | IGN and French public bodies | Historical GSI topographic maps |
| Made by | IGN (Institut national de l'information géographique et forestière) | Kenji Tani (Saitama University) |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Best on a computer | Works well on phones |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with Géoportail
- IGN topographic maps
- Aerial photos, current and historical
- Cadastre and land data
- Hundreds of thematic layers
What you can do with Konjaku Map on the Web
- Old and new maps side by side
- Many periods for each region
- Covers major Japanese cities and regions
Summary based on public information. Check each map's website for current features and prices.