Leave your mark on the John lennon Wall
Bring a pen (or a can of spray paint!) and leave your own message on the wall, which has became a venue for young Czechs in the '80s to air their grievances toward the communist regime. In 2014, the entire wall was painted white, declaring “the wall is over.” But people immediately returned with art supplies in hand. Since then, the wall has been left alone and people continue to decorate it any way they want.