Lennon Wall wall and in a report of the time this led to a clash between hundreds of students and security police on the nearby Charles Bridge. The movement these students followed was described 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, by the next day it was again full of poems and flowers. Today, the wall represents a symbol of global ideals
Source Wall wall. If a source wall is breached too many times, it will collapse and lead to chaos and the destruction of its universe. In "Countdown" #23, Superman-Prime operates out of a cave within the Source Wall itself, specifically a section bordering Earth-15. He mentions its deterioration and later blasts it with his heat vision, causing a devastating chain-reaction which seemingly obliterated Earth-15. Darkseid's connection to the Source Wall is very notable because he has not only been attached to it, but removed from the wall multiple times. In Jeph Loeb's run of "Superman/Batman", Darkseid is thrown onto the wall by