From June to September you can enjoy a free sound-and-light show at the Blue Mosque (the viewing benches are about halfway between the mosque and Haghia Sophia).
You have to pay to enjoy the show at the Blue Mosque.
mnli hypothesis: You have to pay to enjoy the show at the Blue Mosque. premise: From June to September you can enjoy a free sound-and-light show at the Blue Mosque (the viewing benches are about halfway between the mosque and Haghia Sophia).