This historic watchtower, also known as the Galata Kulesi Museum, can be found at the end of Istanbul’s Istiklal shopping street. Today, this museum has exhibition spaces where you can learn about the area's history and admire the iconic architecture of this stone tower. Head up to the observation deck, where you'll be treated to sweeping views of the city and the Bosphorus Strait. It gets busy during sunset though—you can skip the lines with an Istanbul Museum Pass. There are loads of shops and restaurants in the area too—you can explore the tower and the surrounding area on a guided tour of Istanbul. – Tripadvisor