Mirrored image of a microscopic water flea

Daphnia pulex • Photo by Paul Hebert (CC BY 2.5)

Computer-generated image of an array of small dots on a black background

Photo by Pawel Czerwinski on Unsplash

Painting of demon sitting on sleeping woman

The Nightmare (1781) by John Henry Fuseli

Medieval illustration depicting a woman warming her legs by a fire while outside is snowy and frigid

Detail from "Très Riches Heures" (c. 1412)

Photographic illusion of a cross-legged man seemingly levitating

Photo by Michael Walk on Unsplash

Image of the head of a pigeon peeking around a corner

Photo by Sneha Cecil on Unsplash

Image of a medieval stave church beside a fjord in Norway

Urnes Stave Church • Photo by John Marx (CC BY-NC-ND 2.0)

Image of an seashore at sunrise with a group of gulls flying overhead

Photo by frank mckenna on Unsplash

Soft focus image of a meadow at sunrise, with sparking lights throughout

Photo by Kent Pilcher on Unsplash

Close-up black-and-white photograph of the twisted surface of a pepper

"Pepper No. 30" by Edward Weston (1930)