Good Free Mesh Creator

I am looking for a good free mesh creator/designer. So then I can make buildings, and stuff.
I do not want BLENDER!:x

So if you could help me find one I would appreciate it thanks!

My Modeller is Hexagon I Love this tool. Also It is easy to use and free at the moment .

http://www.daz3d.com/products/hexagon/hexagon-what-is-hexagon