'My daring grandfather took a bit of East Berlin for himself'
By Elaine Chong Berlin
In 1982, a Turkish immigrant started a garden near the Berlin wall on a patch of East German land. Osman Kalin fiercely defended his small domain from any authorities who tried to take it away. Though he died this year, his family are still looking after the plot and the tree house he built there.
More:'My daring grandfather took a bit of East Berlin for himself' - BBC News