Prague's Kinsky Square was for many decades called The Square of Soviet
Tank Crews. It was because a huge Soviet tank, a memorial to the
liberation of Czechoslovakia in 1945, used to stand there on a 5-metre
pedestal, its barrel menacingly pointing at a tram stop. Until one
morning, in the spring of 1991, locals woke up and could not believe their
eyes. The tank had turned pink overnight.