Directory structure of project in visual studio 2008

Question

When I create a visual c++ project named test,the project directory will be like this:

test

    test
        Debug

    Debug

    test.ncb

    test.sln

    test.suo

Why does it create two Debug directories?

Answer 1

One of the folders is for the project (output files from the project)
One of the folders is for the solution (output files from all the projects in the solution)