Ferdinand van Kessel’s Four Parts of the World (ca. 1689)

Bruegel the Elder’s Big Fish Eat Little Fish (1556)

Albrecht Dürer’s Pillow Studies (1493)

Snowball Fights in Art (1400–1946)

John Singleton Copley’s Watson and the Shark (1778)

Solid Objects: 16th-Century Geometric and Perspective Drawings

Lewis Carroll’s Illustrations for “Alice’s Adventures Under Ground” (1864)

Images of Hatha Yoga from the Joga Pradīpikā (19th century)

En Pleine Mer: The Underwater Landscapes of Eugen von Ransonnet-Villez

The Reverse of a Framed Painting, and Other Trompe L’oeil by Cornelis Norbertus Gijsbrechts (ca. 1670)

Kaspar Hauser’s Art (1828–1833)

Joseph Ducreux’s Self-Portraits (ca. 1790)

“A Slight Freshness on the Neck”: Prints Depicting the Execution of Louis XVI (ca. 1793)

The Comet Book (1587)

Henri de Toulouse-Lautrec’s Bed Series: An Intimate Look Behind the Scenes at a Paris Brothel (1890s)

Studies on Twilight Phenomena, after Krakatoa (1888)

Plague Doctor Costumes

Japanese Firemen’s Coats (19th century)

Sarah Goodridge’s Beauty Revealed (1828)

François de Nomé’s Imaginary Ruins

“Firelight Flickering on the Ceiling of the World”: The Aurora Borealis in Art

D. A. Rovinskii’s Collection of Russian Lubki (18th–19th Century)

Persian Demons from a Book of Magic and Astrology (1921)

Edward Lear’s Nonsense Botany (1871–77)