Most interesting in 3D Modeling

Free
It is a program that allows you to explore and visualize 3D concepts
Free
Creates complex 3D models
Free
Design the lighting of various areas
Create a floor plan for your home and start adding walls and textures
Review 2D and 3D designs without using the application they were created in

Top rated in 3D Modeling

Sweet Home 3D
Free

Design a house, furnish it and see the result in 3D

Blender
Free

Create 3D animations, games, and interactive 3D applications

SketchUp
Free

Create 3D drawings