fractal tree-like form production

hello, 

im trying to create a form by mimicking the fractal method of a tree where a brnch splits into two branches with random angles and so on 

i want to do this to my building by using a box instead of the branch and then i'll have 2 boxes and so on

can somebody help me and tell me bes method or plugins to do such thing ?

an if i use rbbit plugi can i change the line into a box ?