Taiwan Century Map lets users compare modern addresses with historical maps from 1904 to 2003
Entrepreneur Brothers co-founder Kuo Chia-chi has built a website called "Taiwan Century Map" that lets users enter a Taiwan address and compare it against historical maps spanning six periods from 1904 to 2003. The service uses map layers from Academia Sinica’s GIS Center through its publicly available WMTS service. According to the report, the WMTS endpoint is open for direct use and does not require an API key or separate licensing process. BlockTempo tested three locations — Taipei 101, Hsinchu Science Park, and the Taipei Main Station shopping area — and found that the site classified all three as "paddy and dry-field cultivation areas." The first two broadly matched historical conditions, but the Taipei Main Station result appeared inconsistent with the 1904 map, where urban blocks and building lines were already visible. The report also noted that the underlying WMTS service currently offers 218 layers, while the website uses only six, leaving a much larger archive of historical materials available for potential reuse.








