I will be visiting Istanbul in mid-JUNE on a SATURDAY.
I am concerned about long lines for buying tickets and visiting Blue Mosque, Topkapi Palace, Hagia Sophia.
Should I expect problems buying tickets? I had planned on seeing these sites on my own....but would consider hiring a private guide.....or joining a tour..... if they can buy the tickets in advance and avoid this problem.
I am also concerned about large crowds from cruise ship tours.
Any information or advice is appreciated.