Black and white drawing of a whelk shell on a white background

Yellow ribbon with a blue and white logo on it

Old book with a drawing of a plant on it

Brick building with a clock tower on the side of it

Open book with a drawing of a man and a dog on it

Black and white photo of a rock on a white background

Street with cars and motorcycles parked on the side of it

Old map of the city of San Francisco

Close up of a brown and cream colored rock on a black background