We have included 3D sound in our project for enhancing the realism in our virtual environments. Our project allows building different virtual environment multi-screen, with a full navigation system, four ways of manipulating: keyboard, head tracker, remote control and input files with different predefined tours. Furthermore, with this project we can also build two different stereoscopes: Wheatstone- type and Cazes-type. We have implemented three virtual worlds for the different environments: The first one shows a collection of anaglyphic photographs; the second one is a collection of photographs of roman art; the third one is a computing center.