The oldest chalk hill figure in the UK at around 3000 years old... dating back to the Bronze Age.
There is some dispute as to whether this represents a horse or indeed a dragon. There is a "Dragon Hill" nearby which is reputed to be where St George slayed the dragon itself.
For us to to still be able to see this now in 2015, means it must have been maintained by at least 120 generations of human beings... ensuring it didn't get overgrown by grass... and the chalk was recut/refilled. Amazing. :-)