In the program, Tamori, accompanied by NHK's female broadcaster,[1] strolled Japan's city or area with professional or amateur geologists, local historians or curators, and explored the place's terrain features and geological changes, as well as its history, culture and civil engineering.

In those series, Tamori could visit only within the Tokyo Metropolitan Area or in its vicinity as he was extremely busy hosting the TV program Waratte Iitomo!

The fourth series was planned after Tamori resigned from his daily Fuji TV variety show Waratte Iitomo!

NHK's spokesman announced on January 21, 2015, that the new series would start airing again and that Tamori would visit places outside Tokyo.

Maho Kuwako served as next Assistant until she handed over the job to Yurie Omi in April 2016.

[9] In April 2022, Aoi Noguchi, working at Fukuoka Broadcasting Station, took over the job of Assistant from Asano.