Istanbul is brimming with fun activities for all ages, making it a surprisingly family-friendly destination. Immerse the little ones in history and culture with trips to Topkapi Palace (now a museum), the Blue Mosque, and the underground Basilica Cistern, which dates back to 532. For a more kid-centric activity, secure tickets to SEA Life, where more than 10,000 fish are on display, along with sharks and stingrays. Other kid-friendly options include the Rahmi Koc Museum, which is dedicated to the history of transport, industry and communications; the Toy Museum, which is just as much fun as the name implies; and Miniaturk, a vast park full of miniatures.