Virtual time travel from existing remains of a heritage site to its previous states is an educational and interesting experience and can provide better understanding of history. We do this by adding the time dimension (3D+1).

Richly detailed 3D models of real world objects are essential for many interactive visualization applications ranging from manufacturing design to entertainment, heritage sites documentation, and virtual museums. For these models to be useful, they must:

• Have a resolution and realistic appearance that match what is perceptible by the human eye on a real visit
  
• Be easy and economical to create
• Have size small enough to manipulate in real-time