Shrine to pacifism from communist times or bright coloured eyesore – Prague’s John Lennon Wall has always polarised opinion. After John Lennon’s death in 1980, a portrait of him was painted on a wall in this secluded square near the Charles Bridge. Beatles lyrics and political graffiti were added and despite the secret police repeatedly painting over it, they kept being put back up and the area became a focus for pacifist youth. After the fall of communism the original portrait faded, but more recently contributions from tourists have kept it going and it’s now a constantly evolving mix of paintings, messages and colours. And the Knights of Malta, who own the wall, have finally given up on trying to cover it up.