Sultan Ahmed Mosque (100 metres) - built between 1609 and 1616 by order of the Sultan Ahmed I, after whom it is named. It is commonly known as 'The Blue Mosque' due to its striking interior blue tiles.
Hagia Sophia (50 metres) - constructed between AD 532 and 537, this superb survivor of Byzantine architecture is often considered one of the greatest and most beautiful buildings in existence. It is now home to the Ayasofya Museum.
Basilica Cistern (70 metres) - the largest of several hundred ancient cisterns that still lie beneath the city of Istanbul, capable of holding up to 80000 m³ of water.