Iruña-Veleia, a Roman oppidum in Alava, northern Spain:
Reconstruction features very heavily in the presentation of the site, for example this mosaic over a water tank:
The finds from the site include what is claimed to be the oldest representation of the crucifixion of Christ and the oldest known writings in the Basque language*.
In Late Antiquity, the size of the oppidum was reduced, and the settlement refortified, as evidenced by this road truncated by the insertion of a later wall:
*EDIT November 30th 2008. These claims have been debunked as false by a panel of archaeologists. Please refer to this story in the Guardian