Let's really start - the Lennon Wall (Lennonova Zed) was never a memorial for the important singer, who was murdered by an insane fan. It was born as a way for young Czech people to express a peaceful protest against the communist regime. This wall is covered by graffiti, from Prague's darker days.
Many of Prague's students used to come here, draw, write, and run away from the police. The police were forced to again and again paint the wall, but people would come back and repaint the wall. Someone then added to the anti-communist addresses also written for peace and the portrait of Lennon. What came next was clear. Lennon and peace, let alone imagination, always went together...
And then the Velvet Revolution of 1989 arrived. This was the end of the communist rule over Czechoslovakia, the former name of the country that was united with Slovakia under Soviet rule. After the revolution, tourists began taking pieces off the wall and keeping them as souvenirs. After considerable parts of the wall were taken, it was decided to redraw the graffiti and slogans, what made the wall especially vibrant and colorful.
It is interesting that up to today, as a free and democratic country, slogans are still being added and written for peace, equality, and love.
Lennon's imagination lives on!