Turkish Airlines passengers in transit through Istanbul with a six- to 24-hour layover will be able to tour the city for free.

The airline has curated five tours of the city on all days of the week. After passport control for the connecting flight, passengers can sign up for Touristanbul at the Hotel Desk in the International Arrivals Terminal of Istanbul Ataturk Airport.

Tours include visits to Walls of Constantine, Dolmabahçe Palace, Topkapı Palace, Grand Bazaar, Old Book Market and Blue Mosque. Some tours are a simply drive around the city, while some are walks through its iconic places.

Tour timings are 8:30am to 11am, 9am to 3pm, 9am to 6pm, noon to 6pm and 4pm to 9pm.