World's longest rail networks

Railway is a mode of transport. In India,  we have a wide range of railway network.

Its not only us. There are other countries too. 

1.  US rail network  - - -  Biggest in the world.

2.  Chinese railway network

3. Russian railway network 

4.  Indian railway network 

5.  Canadian railway network 

6.  German railway network

7.  Australian railway network 

8.  Argentina railway network

9.  French railway network

10.  Brazilian railway network