https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/2016-07-20_14_31_11_Bald_Cypress_trees_with_knees_at_the_Battle_Creek_Cypress_Swamp_in_Calvert_County%2C_Maryland.jpg/90px-2016-07-20_14_31_11_Bald_Cypress_trees_with_knees_at_the_Battle_Creek_Cypress_Swamp_in_Calvert_County%2C_Maryland.jpg