Navisworks is a BIM software that allows stakeholders to collaborate by integrating models from other design software. It goes beyond design by enabling real-time walkthroughs, animations, and lighting effects of the actual model. Key benefits of Navisworks include comprehensive model review and clash detection capabilities, support for 2D drawings, tools for creating realistic visualizations and walkthroughs, cloud collaboration features, and precise clash detection across models. Navisworks reduces rework through accurate analysis and helps stakeholders visualize designs.