Capital Cities

What Turkish city has been the capital of three major empires: Roman, Byzantine and Ottoman?

More Questions from Capital Cities
In which capital city would you find the Parthenon?
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What city is the capital of Papua New Guinea?
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In the capital city Washington D.C., what building would you find there?
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Which of these is a U.S. state capital in the East?
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What is the capital city of Belarus?
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Which country with a total area of 1,001,450 square kilometers has Cairo as its capital city?
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Which country with a total area of 196,190 square kilometers has Dakar as its capital city?
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What is the capital city of the country Bosnia and Herzegovina?
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