See the men in the tree hanging the Easter Egg ornaments?
According to MyCzechRepublic.com, during Lent, trees in Prague's Old Town Square and Wenceslas Square are decorated with brightly colored ribbons and eggs. When this is finished, they will place the Paschal equivalent of the nativity scene at the base of the tree. They will also place an Easter Bunny in straw. We were lucky enough to get to visit once, when they were preparing for the approaching season.