The well was closed with a met­al plug, and the cen­ter itself was aban­doned and left to be torn to pieces by loot­ers. Now the Kola Superdeep has become a pop­u­lar attrac­tion, part­ly thanks to the leg­end that there is an under­world at the depths. This leg­end not only pop­u­lar­ized the well, but also became the basis for sev­er­al films and books.