Old topographic map of the city of San Francisco

Open book with a drawing of a machine on it

Half-timbered house on the corner of a street

Black and white drawing of a column with intricate designs on it

Black and white engraving of a group of people in a courtyard

Yellow and black bird

Open book with a drawing of a plant on it

Close up of a red flower with water droplets on it

Large crowd of people standing in front of a building