Shadow of a person walking down a street lined with buildings

Topographic map of the San Juan area of Puerto Rico

Drawing of a shell on a piece of paper

Vast expanse of sand dunes in the Sahara Desert

Old building with peeling paint on the walls and windows

Field full of white cow parsley flowers in the middle of a grassy field

Large brick building sitting in the middle of a field

Old photo of a tall obelisk in the middle of a desert

Black and white drawing of a butterfly on a white background with…