A Camera Obscura is an optical device that projects an image of its surroundings onto a surface. It consists of a darkened room or box with a small hole, or aperture, on one side. Light from the outside scene passes through the hole and creates an inverted image on the opposite wall or surface inside. This phenomenon occurs due to the way light travels in straight lines. The Camera Obscura has been used for centuries, influencing the development of photography and art. It demonstrates fundamental principles of optics and has been a valuable tool for artists and scientists alike.