Close up of a green plant cell under a microscope

Large building with a lot of windows

Open book with a drawing of three men in uniform

Black and white photo of a group of people sitting on the ground in…

Open book with a black and white photo of a man standing next to a…

Street with cars parked on the side of it

Black and white photo of two plastron fossils on a page from a book

Empty street with a few vehicles driving on it

Book with a drawing of a man in uniform