New back Cambridge Railway Station SketchUp 2

Now, I wanted to design the back of the main building so I sketched it how I wanted it to look like.

Then, I used SketchUp to make it look 3D. 

1: First, I started to draw it by using the 'line' tool and the 'arc' tool.  

2: As it is a curved roof, It will not filled up so I had to make flat triangules within the roof.

3: After having completed the roof, then I used a option to make the lines softer, so they will disappear and make the roof look as if it was one piece.

4: I used the tool 'Paint Bucket' to make it look like glass.

Final piece.