diagonal lines suggest
Horizontal, Vertical, and Diagonal Lines Horizontal lines suggest landscape and the horizon. They impart a sense of peacefulness, vastness, and constancy. Caspar David Friedrich The wanderer above the sea of fog 1818. oil on canvas 98 Ã 74 cm (38.58 Ã 29.13 in) Hamburger Kunsthalle Vertical lines suggest alert attention. They imply strength, power, and authority. Cathedral of Our Lady of Chartres (CathÃ©drale Notre-Dame de Chartres), Chartres, France 1193--1250 Diagonal lines suggest action and movement. They convey dynamism, vitality, and animation. LaocoÃ¶n and his sons, also known as the LaocoÃ¶n Group