An image of "Two Men Contemplating the Moon", created by Caspar David Friedrich from 1819-20 (Oil on canvas, 35 x 44 cm).

An image of "Riesengebirge Landscape with Rising Fog", created by Caspar David Friedrich from 1819-20 (Oil on canvas, 55 x 70 cm).

An image of "View of the Baltic", created by Caspar David Friedrich from 1820-25 (Oil on canvas, 34,5 x 44 cm).

An image of "Oak in the Snow", created by Caspar David Friedrich during the 1820's (Oil on canvas, 44 x 34,5 cm).

An image of "Morning in the Mountains", created by Caspar David Friedrich from 1822-23 (Oil on canvas, 135 x 170 cm).

An image of "Rocky Ravine", created by Caspar David Friedrich from 1822-23 (Oil on canvas, 94 x 74 cm).

An image of "The North Sea in Moonlight", created by Caspar David Friedrich from 1823-24 (Oil on canvas, 31 x 22 cm).

An image of "The Watzmann", created by Caspar David Friedrich from 1824-25 (Oil on canvas, 135 x 170 cm).

An image of "Chalk Cliffs at Rugen", created by Caspar David Friedrich from 1825-26 (Watercolour over pencil, 317 x 252 mm).

An image of "The Cemetery Gate (The Churchyard)", created by Caspar David Friedrich from 1825-30 (Oil on canvas, 31 x 25 cm).

An image of "Seashore with Shipwreck by Moonlight", created by Caspar David Friedrich from 1825-30 (Oil on canvas, 77 x 97 cm).