More black and white
The Persistence of Memory (« Melting Clocks »), Salvador Dalí, 1931, Oil on canvas, 24.1x33 cm, [817x591]
The ceiling of the Rotunda of Mosta, Malta, one of the largest free standing domes in the world [1920x1320]
Not sure if this is on purpose, but a pen made out of recycled plastic bottles cast a shadow of a plastic bottle!
Pencils produced in the 1990s with the anti-drug slogan "Too Cool to Do Drugs" were recalled because, when sharpened, they read "Do Drugs".
'Painters,' by Wu Seng Peng, silver gelatin print, 1958. Collection of National Gallery of Singapore [2448×3264]