Our home galaxy, the Milky Way, is believed to be a typical barred-spiral galaxy, composed of the stellar disk, gaseous disk, central barred bulge, and dark matter halo. But observations alone cannot determine clearly how our galaxy looks from the outside, or its evolutionary history. This is mainly due to uncertainties in Solar System’s location within the disk itself and difficulties in determining the distances to sources when mapping Galactic structures.This movie displays the various structures of the simulated Milky Way Galaxy, based on fundamental physical processes such as the gravitational interactions between stars and gas; the dynamics and evolution of the gas; star formation from the gas clouds; and energetic feedback from the stars.Simulation: Junichi BabaVisualization, Music: Hirotaka Nakayama©2017 Junichi Baba, Hirotaka Nakayama, 4D2U Project, NAOJ- Terms and Conditions of Usehttp://4d2u.nao.ac.jp/english/index.html#notice- Details of this video and Downloadhttp://4d2u.nao.ac.jp/t/var/download/MWJourney_e.html- Four-Dimensional Digital Universe (4D2U) Project, NAOJhttp://4d2u.nao.ac.jp