In this essay, we explore an embodied walking engagement with the grounds of the Oklahoma City bombing memorial site that commemorates a bombing that killed 168 people in 1995. We consider our engagement as an existential pilgrimage with implications for peace education curriculum and pedagogy. Returning with intention again and again to a place that marks profound violence and loss--as well as peace and hope--invites attention, contemplation, and learning. Through entangled sensory engagement in place, in walking, being, and gathering with others, we bear witness to echoes of loss in the wake of the unthinkable. We first describe conceptual anchors of our inquiry, which we call 'pilgrimage as inquiry', as a form of walking methodology integral to place-based investigations. We describe insights resulting from our engagement at the memorial. Finally, we conclude with lessons for peace education that stretches beyond the memorial site itself.