Ernst Haeckel’s Bats (1904)

The Steps of Life

Hypnotism Posters (ca. 1900)

The Art of Hidden Faces: Anthropomorphic Landscapes

The Art of Dreams

Highlights from Folger Shakespeare Library’s Release of almost 80,000 Images

Shtetl, My Destroyed Home: A Remembrance (1922)

Ernst Haeckel’s Radiolaria (1862)

A Selection from The Getty’s Open Content Program

Lost Futures: A 19th-Century Vision of the Year 2000

Halloween Postcards, ca. 1900–1920