Old German 50 Pfennig banknote with a picture of a church on it

Black and white photo of a brick building with windows and doors

Yellow and green building with a gate in front of it

Open book with a drawing of a machine on it

Drawing of a plant with white flowers on a piece of paper

Large power plant situated in the middle of a body of water

Man in a yellow shirt standing and holding a soccer ball in his hand

Group of people standing around a circle in the desert

Black and white drawing of a man with a human face on the left side…