"Soon after conquering Constantinople and defeating the Byzantines in 1453, Ottoman Sultan Mehmet II commissioned the beginnings of the Grand Bazaar to reinvigorate trade with the city. More than 550 years later, the bazaar is one of the oldest covered markets in the world, with a labyrinth of 61 streets connecting over 4,000 shops selling all manner of treasures and souvenirs, from jewelry to silk carpets. Make a beeline for Sivasli Istanbul Yazmacisi , whose quality textiles are popular with interior decorators. Looking for currency exchange shops? You’ll find the best rates in Istanbul here."