Black and white engraving of a stone circle in the middle of a field

Statue of a man sitting atop a stone wall

Old book with a drawing of a woodpecker perched on a tree trunk

Book with a drawing of a plant with white flowers on it

Close up of a small green plant

Old postcard of a large building with a pond in front of it

Paper with a drawing of a mountain and a map of the city of Delos

Open book with a drawing of a clock on it

Old book with a ruler next to it on a white surface