There's nothing more universally deflating as a British child than being told you're going to see some ancient hill fort, letting your castle-filled imagination run wild, before arriving there after a long car journey, and just seeing a hill.
That's why some archaeologists "enhanced" their hills by adding "reconstructed" features that were probably never there in the first place:
> [...] O'Kelly concluded that they had made up a retaining wall, but had fallen from the face of the mound. As part of the restoration, this wall was "rebuilt" and the cobblestones were fixed into a near-vertical steel-reinforced concrete wall surrounding the front of the mound. This work is controversial among the archaeological community. [...] Neil Oliver described the reconstruction as "a bit brutal, a bit overdone, kind of like Stalin does the Stone Age". Critics of the new wall claim that the technology to fix a retaining wall at this angle did not exist when the mound was created.
Another nearby place to visit if you're in the Chichester area is Kingley Vale [1]. It too has a hill fort at the top, but even more impressive is the amazing 1000-year-old yew forest at the bottom. Planted (according to tradition) by the Saxons to celebrate a victory over the Vikings.