The Queen and Prince Philip arrived for their state visit at Esenboga airport on Tuesday.
The Queen inspected a Guard of Honour at the presidential Palace with President Abdullah Gul on the first day of her visit.
The Queen attended a wreath laying ceremony at Anitkabir, mausoleum of the founder of the modern Turkish Republic, Mustafa Kemal Ataturk.
A state banquet at the Presidential Palace in Ankara was held in honour of the Queen and Prince Philip on Tuesday night.
The Queen visited a shop in the historic Silk Bazaar in Bursa, western Turkey.
The Queen visited the Green Mosque, in Turkey's northwest city of Bursa, during which she wore a headscarf.
Turkey's first lady Hayrunisa Gul accompanied the Queen to a fashion show wearing an Islamic headscarf, attracting controversy.