Cosmic Structure :
Great Attractor : 200 units away. Which attracts our galaxy and everything around it.
Shaply cluster : 600 units away. Pulling Great Attractor and everything surrounding it including our galaxy.
Largest dia for both the above is 400 units.
Where visible universe : 50,000 units radius.
The cosmic structure is more like bubble of foams. Void in between the bubbles. Dia of these bubbles range from 30 to 300 units. Our galaxy lies on the border of one such void, of dia 200 units.
1 unit = mly million light years.