Black and white photo of two young girls standing next to each other

Chemical structure of a peptide molecule on a white background

Two men in armor

Painting of a vase filled with white hydrangeas on a table

Black and white drawing of a coat of arms with an eagle perched atop it

Black and white drawing of a column on a white background

Drawing of a room with a bed and a table in the center

Map of the world with the Middle East highlighted in red

Black and white drawing of a horse with a heart and lungs in the…