I keep seeing these bugs on a wall in my house in Istanbul (Turkey) walking up and down generally during evening and night. They are about 1 mm long and have a brownish color. I see more of them through late hours. Does anyone know what they are called?
Those are collembolans. Common name, springtails. Do you have a potted plant nearby? They are completely harmless.
Here is an example:
(picture from bugguide.net