most interesting places without a listing

I ran across a website for nanzoin in fukuoka and was surprised to find that it did not have a page listing on japan-guide. What are some other unlisted treasures that you would recommend for people to visit?

I can list a lot more great spots in Chiba, Saitama and Ibaraki. It's surprising what low amount of places are listed in the greater metropolitan area.

I like Gunma Kiryu, I went three times.
Cityscape of Tochigi Prefecture, Tochigi also was good.
Other, and Komagane-Senjojiki curl of Nagano Prefecture.
Venus line following from Lake Suwa.
The Venus line, and the like Tateshina-Shirakaba-Kurumayama-Utsukushigahara Plateau Museum.
Although time congestion road in the summer, views of the broad dwarf day lily and hang glider Kurumayama was nice.

You will find a lot of information by brousing through the official website of each prefecture or even each city. Just Google the prefecture/city name to find the website and narrow it down. There are numerous information that can't be squeezed into websites that cover the whole country!

http://www.crossroadfukuoka.jp/en/event/?mode=spotSearch&catll=1&catl=...

Nanzoin Temple is in Fukuoka Prefecture but not Fukuoka City and is probably not worth giving its own listing. I haven't been to Nanzoin, but it looks similar to Tsubosaka-dera in Takatori (Nara Prefecture).

I also like Tsuyama with its historic district, castle ruins, garden, etc. especially during cherry blossom season.

Maniwa is a hidden gem. It has an excellent outdoor, open-air onsen, great food and the Hiruzen Highlands, a great waterfall, and nice historic town around the station.

Kochi Prefecture obviously has more to offer than just the capital. I'd like to explore more there myself, but Ryugado Cave is great.

There are so many great places, and many cities that are listed have unlisted attractions that are impressive. If they listed everything though, the site would be cumbersome for many to navigate.

This is a very interesting topic!

I myself found Nokogiriyama worth a detour.