Photographs show different viewpoints, dates and conditions. They do not establish current access to a particular route. Every image is credited below.
Istanbul makes more sense when its waterways are treated as part of the city rather than a backdrop. A boat journey changes the scale of its skyline and links otherwise separate neighbourhoods. Inside monumental spaces, light and structural form provide a more concentrated architectural experience.
Group sights geographically and check current arrangements for religious buildings. A water crossing can be both a useful connection and an experience worth allowing time for.