This photo from the National Archive was taken on an airplane from the McCook Field aviation experimentation station in Dayton, Ohio, which was flying in the region for a photographic mapping expedition of the Canadian border in October and November of 1925.

The caption on the photo reads:

Duluth Harbor Basin, the main business section and portions of Lake Superior, showing the “Eighth Wonder of the World,” the Aerial Bridge connecting Duluth proper with a long neck of land known as Minnesota Point, which really makes the Duluth Superior Harbor.