horrific crimes or acts of genocide, for example concentration camps. Its origins are rooted in fairgrounds and medieval fairs. Philip Stone argues that dark tourism is a way of imagining one's own death through the real death of others. Erik H Cohen introduces the term "populo sites" to evidence the educational character of dark tourism. Popular sites transmit the story of victimized people to visitors. Based on a study at Yad Vashem, the Shoah (Holocaust) memorial museum in Jerusalem, a new term—in populo—is proposed to describe dark tourism sites at a spiritual and population center of the people to whom a tragedy befell. Learning about the Shoah in Jerusalem offers an encounter with the subject which is different from visits to sites in Europe, but equally authentic. It is argued that a dichotomy between "authentic" sites at the location of a tragedy and "created" sites elsewhere is insufficient. Participants' evaluations of seminars for European teachers at Yad Vashem indicate that the location is an important aspect of a meaningful encounter with the subject. Implications for other cases of dark tourism at in populo locations are discussed. In this vein, Peter Tarlow defines dark tourism as the tendency to visit the scenes of tragedies or historically noteworthy deaths, which continue to impact our lives. This issue cannot be understood without the figure of trauma. Victoria Mitchell et al. suggest that dark tourism seems to be a heterogeneous discipline. There is a great dispersion of definitions, knowledge production and meanings revolving around the term. In fact, dark tourism practices vary in culture and time. Qualitative speaking, dark tourism experience is pretty different from leisure practices. To fill the gap, the existent definitions should be catalogued in sub-categories to form an all-encompassing model that expands the current understanding of dark tourism. In consonance with this, M. Apleni et al. argue dark tourism helps the industry not to be fragmented before the ongoing states of crises the activity often faces. They cite the case of terrorism which paves the way for the construction of a new dark site. Dark tourism plays a leading role not only in enhancing destination resilience but also in helping communities to deal with traumatic experiences. Social tourism Social tourism is making tourism available to poor people who otherwise could not afford to travel for their education or recreation. It includes youth hostels and low-priced holiday accommodation run by church