The object of this study concerns the prescribed work for acquiring an indulgence tied to a sacred place. The present argument is of particular importance because it is subject to errors and abuses, and given little attention in the canonical literature. This article seeks to present such prescribed works for acquiring an indulgence in light of the doctrine on indulgences and the norms for their application. The study is broken down into four parts: in the first part are treated in brief the general doctrinal and canonical principles on indulgences; in the second the necessary conditions to obtain them; in the third the general norms concerning indulgences connected to the visit of sacred places; and in the last part a closer look will be given to the granting of such indulgences.