A number of classic paintings (and tapestries, etc) are depicted in Clockwork Castle. These have all long since passed into the public domain, but credit where credit is due:

- Adolf von Menzel - Blind Man's Buff (c1860)
- Albert Bierstadt - Among the Sierra Nevada Mountains (1868)
- Alphonse Mucha - Heraldic Chivalry
- Anne-Louis Girodet-Trioson - Portrait of a Woman in Turban (1820)
- Anthonore Christensen - Poppies and Daisies (1903)
- Archduke Maximilian 'Medieval Brussels' Wall Tapestry (1548)
- Charles Edward Perugini - Girl Reading
- Daniel Ridgway Knight - Hailing the Ferry (1888)
- Daniel Ridgway Knight - Tying up the Hollyhocks (1888)
- Edmund Blair Leighton - A little prince likely in time to bless a royal throne (1904)
- Edmund Blair Leighton - The Hostage (1912)
- Esias Van De Velde - Garden Party Before A Palace (1614)
- Frank Dicksee - Funeral of a Viking (1893)
- Frank Dicksee - Paolo and Francesca
- Georges Michel - Mills at Montmarte
- Hendrick Avercamp - Winter Landscape (1610)
- Ilya Repin - A Shy Peasant (1877)
- Ilya Repin - Ivan the Terrible and His Son Ivan (1885)
- Ilya Repin - Rest. Portrait of Vera Repina, the Artist's Wife (1882)
- Ivan Shishkin - The First Snow (1875)
- Ivan Shishkin - The Road in the Rye (1866)
- Jacques-Louis David - Patrocles
- James Dromgole Linton - Celia from As You Like It
- James Sant - Feeding The Chicks
- James Tissot - October (1877)
- James Tissot - The Rendezvous (1890)
- James Tissot - Type of Beauty (1880)
- Johann Heinrich Fussli - The Nightmare (1791)
- John Atkinson Grimshaw - Autumn Morning
- John Atkinson Grimshaw - The Lady of Shalott (1878)
- John Everett Millais - A Dream of the Past - Sir Isumbras at the Ford (1857)
- John Everett Millais - Autumn Leaves (1856)
- John Everett Millais - Chill October (1870)
- John Everett Millais - Joan of Arc (1865)
- John Everett Millais - Mariana in the Moated Grange (1851)
- John Everett Millais - The Blind Girl (1856)
- John Everett Millais - Winter Fuel (1873)
- Joseph Farquharson - Cauld Blaws the Wind Frae East to West
- Jules Breton - The Recall of the Gleaners (1859)
- Konstantin Makovsky - African (1882)
- Konstantin Makovsky - Egyptian Warrior (1871)
- Konstantin Makovsky - Portrait of Alexander Popov (1863)
- Konstantin Makovsky - Portrait of Lady Vivien (1900)
- Konstantin Makovsky - Portrait of O Makovskaya (1864)
- Konstantin Makovsky - Tea Drinking (1914)
- Louis Janmot - Flowers of the Field (1845)
- Mary Cassatt - Two Women Throwing Flowers (1872)
- Nikolai Yaroshenko - The Student (1881)
- Viktor Vasnetsov - After Prince Igor's Battle with the Polovtsy (1880)
- Viktor Vasnetsov - A Knight at the Crossroads (1878)
- Viktor Vasnetsov - Snow Maiden (1899)
- William Morris - Garden of Delight (1910)
- William Morris - Woodpecker (1885)