caption: The image shows a group of metal turnstiles in an airport terminal, with a person standing in front of them. On the left side of the image, there is a table with monitors and other objects on it, and in the background there are screens and a wall with a design of birds on it. At the top of the roof, there are lights and boards with text, and at the bottom right corner of the picture there is some text and a watermark. The turnstile is part of the K-link turnstil system, which is a type of security system used to restrict access to certain areas of the airport.