Japan Vertical Datum, Benchmark in Japan
The Japan Vertical Datum is a cultural property of Japan, located in Nagatachō.
It was created in May 1891 by Satachi Shichijirō.
Regarded as an important part of Japan's heritage, it is recognized as 'Civil Engineering Heritage Selection'.
This point serves as a standard for measuring elevations in Japan.
It is one of the few cultural properties in the country directly related to civil engineering.
Location: Nagatachō
Inception: May 1891
Architect: Satachi Shichijirō
Architectural style: ancient Roman architecture
Elevation above the sea: 24.39 m
Material: granite
Address: 東京都千代田区永田町1丁目1番2
Source: Wikimedia