The Museum of Pure Form is a Virtual Museum that aims to offer new possibilities for interaction with 3d models of cultural heritage object using the sense of touch and sight. The objective of the Pure Form project is to allow museums visitors, students, researchers, blind and visually impaired users interaction with 3D models of works of art through the innovative concept of haptic perception (from the Greek “haptesthai” meaning “to touch”), thus overcoming the traditional limit of the art fruition based on the mere observation by sight. Using 3d models, the Museum of Pure Forms is not linked to a specific physical site: it consists of a multiuser and immersive Virtual Environment where digital representations are displayed. By selecting an element it is possible to see it in variable dimensions thanks to scalable digital model, in order to appreciate small details or, on the contrary, to perceive form structure and style of big objects. Digital haptic models are perfect copies of original work, so they could be used for research and study, especially when real objects have a difficult access or problems of conservation. Started in 2002, the Museum of Pure Form is currently on exhibit at the Museo dell’Opera del Duomo in Pisa, right next to the leaning tower.