100,000 galaxies look like a bit of dandelion fluff or a sea anemone on megaparsec scale. Embedded in this one YouTube video are all the photos and animations you have seen on the web.
0:26 Data points
0.33 Laniakea revealed
0:50 Lacy structure of thousands of galactic clumps
1:28 Emerging 3D model with in and out flows
1:56 3D flow identifying the Great Attractor
Pictures below snapped from the video.