Akiyoshidai Natural Science Museum (秋吉台科学博物館) 秋吉台科学博物館
Free entry since about 1960: coral fossils from the Akiyoshidai karst, and permanent exhibitions redone in 2023 on the history of geological research.
Science museum of the municipality of Mine, a few minutes from the Akiyoshidai plateau and the Akiyoshidō cave.
Yamaguchi
黒谷口
https://theanimetrip.com/luoghi/akiyoshidai-kagaku-hakubutsukan