After the Norman conquest, the old Abbey was rebuilt, starting in 1083. This is the Octagon, suspended on arches.
And here is a view down the length of the building, looking from the Octagon. I took the photo of the Octagon with a Fuji X-E3 with 27mm lens, and the photo looking down the length of the cathedral, with an iPhone 8.
And here is Ely on the map – north east of Cambridge. It is small, just 20,000 people.
Because the land around the cathedra is fen land, with the building rising dramatically above the flat landscape, the cathedral is known as the ship of the fens.