Istanbul[b] is the largest city in Turkey, constituting the country's economic, cultural, and historical center. With a population of over 15 million, it is home to 18% of the population of Turkey. [3] . Istanbul is among the largest cities in Europe [c] and in the world by population.
Discover the best things to do in Istanbul, Turkey, which include exploring the Hagia Sophia Mosque and Topkapi Palace and cruising down the Bosphorus Strait.
19 Best Things to Do in Istanbul, Turkey - U.S. News Travel
Istanbul is a city that mixes old and new, and the best way to explore it is through its mahalles (neighborhoods). Get your history fix in Beyoğlu—it’s chock-full of 19th-century European elegance—or head to Sultanahmet and see the holy sites.
Istanbul, Türkiye: All You Must Know Before You Go (2026) - Tripadvisor
Istanbul, largest city and principal seaport of Turkey. Historically known as Byzantium and then Constantinople, it was the capital of the Byzantine Empire and the Ottoman Empire.
Istanbul is a city steeped in history and culture, straddling Europe and Asia across the Bosphorus Strait. Once known as Constantinople, it was the capital of the Byzantine and Ottoman Empires. Today, it's Turkey's economic, cultural, and historic center.
Istanbul Travel Guide - Best Attractions & Things to Do | Turkey Tourism
As a city where East meets West, Istanbul offers a mesmerizing mix of history, culture, and vibrant modern life. From the iconic Hagia Sophia to the bustling Grand Bazaar, this guide covers everything you need to know for an unforgettable visit.