Red and yellow communist map of the world, with the image of falling bombsRed and yellow communist map of the world, with the image of falling bombs
Lecture with formulas on the blackboard in front of studentsLecture with formulas on the blackboard in front of students
Drawing of a man and a girl ready to fight on the great wall of chinaDrawing of a man and a girl ready to fight on the Great Wall of China
Burlap on the window with a view of the autumn landscapeBurlap on the window with a view of the autumn landscape