The paper appraises the role of virtual reality modelling language (VRML) based 3D computer based models of historic environments in increasing access for and assisting the understanding of the general public. It is argued that VRML based 3D models and linked media create a low cost easy to use and intuitively accessible interface through which transient or casual users can retrieve information or experience narrative. The same data collation and modelling process can also assist conservation professionals in their tasks. Criteria are discussed for determining when it is more appropriate to model rather than use photographic techniques in the light of the commonly expressed fear in conservation circles that vicarious presentations may dominate genuine historical experience. Developments are identified which may assist in improving ease of use and understanding by visitors on and off-site.
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