“…Since high-energy muons have a stronger penetration power than X-rays, this technique can create projection images of hectometric to kilometric sized objects. Although there are limitations to the targetable size of the objects that can be imaged by muography, researchers have applied this technique to various scientific targets that include volcanoes [such as Asama, Japan [1][2][3], Satsuma-Iwojima, Japan [4,5], Showa-shinzan, Japan [6], Usu, Japan [7], Unzen, Japan [8], La Sourfiere, France [9,10], Puy de Dome, France [11], Stromboli, Italy [12] and Etna, Italy [13,14]], seismic faults in Japan [15,16], ancient architecture [such as the Egyptian pyramids [17][18][19], and Mt. Echia, Italy [20]], and industrial plants [including electric furnaces [21] and nuclear reactors [22]].…”