Newgrange (Irish: Sí an Bhrú) is the present name of a Neolithic passage grave on the River Boyne in County Meath, Ireland. The complex was built around 3150 BC. and is considered one of the most important megalithic complexes in the world. The complex has a diameter of 90 meters and in its center is the burial chamber, which can be reached through a narrow passage from the entrance.
Visiting Hiroshima during one of our longer trips to Japan moved us deeply. It is not possible to walk past the "Atomic Bomb Dome" of the former Chamber of Commerce and Industry building without shuddering inwardly. The shock wave of the nuclear explosion hit this dome almost vertically at a height of 600 meters, so that parts of its construction resisted.