The Princes’ Islands are a cluster of 9 islands southeast of Istanbul in the Sea of Marmara. Mainly car-free, the islands are known for their horse-drawn carriages (phaetons). At the highest point of Büyükada, the largest island, the 6th-century Hagia Yorgi Church has panoramic views. Nearby are the pine forests of Dil Burnu National Park. The Museum of the Princes’ Islands has exhibits on the islands’ history.