The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples: detail

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples, Couples in Bubble Flower

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples: Topsy-Turvy Man

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, left panel, Garden of Eden

Hieronymus Bosch; 7 ft. 2 5/8 in. x 3 ft. 2 1/8 in.; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, right panel, Hell

Hieronymus Bosch; 7 ft. 2 5/8 in. x 3 ft. 2 1/8 in.; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, right panel, Hell, upper portion: area with Eggman

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, right panel, Hell, lustfull woman and abbess with a pig

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, upper right corner, pink tower, army of knight-mermen, nude riders

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Cavalcade and Pool of Prostitutes: Calvacade at lower left

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, center panel, lower portion, Birds and Couples: detail

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, left panel, Garden of Eden: Fountain of Life

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, right panel, Hell, upper portion: area with eggman

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, right panel, Hell, lower portion, Musicians and Satan: detail

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior, right panel, Hell, lower portion: Satan

Hieronymus Bosch; grisaille, oil on wood

The Garden of Earthly Delights Triptych, interior

Hieronymus Bosch; 6 ft. 8 15/16 in.x 12 ft. 7 31/32 in. (with frame); grisaille and oil on oak panel