The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B5. Beijing 2008 
gathered over the years about the interventions and the new 
historical, archaeological, architectural evidence that has been 
forthcoming from recording the monuments, inventorying and 
identifying scattered architectural members and dismantling the 
buildings (Moullou et al., 2006 and 2007). 
Figure 5. North circuit wall. By P. Konstantopoulos. 
Figure 6. Point cloud of the north circuit wall. 
One of the main steps to achieve the goal of the wall’s 
documentation has already been completed: the production of 
full 3D surface model of the wall and the foundation rock, 
deriving from 3D Laser Scanning. The wall has been recorded 
using a Trimple GX200Plus terrestrial laser scanner at a 
resolution of 1cm and the rock at a resolution of 5 cm (figure 6). 
This work is part of the project “Development of Geographic 
Information Systems at the Acropolis of Athens“, financed by 
the European Union and the Government of Greece, and 
supervised by the Acropolis Restoration Service, Flellenic 
Ministry of Culture. The partners in this project are Elliniki 
Photogrammetriki Ltd (Elpho), Athens, Geotech O.E., Athens, 
Institute for Mediterranean Studies, Foundation for Research & 
Technology (FORTH), Rethymno, Crete, National Research 
Council, Canada, ETH (Swiss Federal Institute of Technology), 
Zurich. 
Additionally, in 2006 the full geometric documentation of the 
poros remains of Arrephorion was carried out, the latter being a 
square building with a side of 12 m of length, dating form the 
5th century BC. 
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