Legal graffiti in walls along The Parkland Walk, London, UK. Parkland Walk, is a 4.5 mile long strip of green land in North London that has been a nature reserve since 1990. The leafy walkway follows a disused railway which used to connect Finsbury Park and Alexandra Palace. It is also an excellent place to see graffiti in North London as many year’s worth of pieces and throw ups adorn several of the bridges that the railway used to run under and abandoned buildings along the route.