Aokigahara

The Aokigahara Forest ranks second in the world, after the Golden Gate in San Francisco, in terms of the number of suicides committed.

An excerpt from the article 15 facts about Aokigahara

In the years 1998-2003, 442 cases of taking one's life were recorded there. Recently, the authorities stopped informing the public about the number of suicide victims in the forest, so as not to promote this place in any way.

However, there were boards with short advice, encouraging people to think about their own family, and containing the contact phone number of institutions that would immediately help a potential suicide.