I came across some impressive street art in Prague, particularly the Lennon Wall. Apparently, young Czechs would write grievances on the wall during the communist regime in the 1980s, leading to a clash between hundreds of students and security police on the nearby Charles Bridge. The movement these students followed was described ironically as “Lennonism” and Czech authorities described these people variously as alcoholics, mentally deranged, sociopathic, and agents of Western capitalism. The wall continuously undergoes change and the original portrait of Lennon is long lost under layers of new paint. Even when the wall was repainted by some authorities, on the second day it was again full of poems and flowers. Today, it represents a symbol of global ideals such as love and peace.