Another photograph I took on my 1975 aerial tour of the area was that of downtown New Orleans. In the picture below, you can tell it's 1975 by the fact that there is only one Mississippi River bridge, no arena, no Hilton Hotel, no Riverwalk and no Westin Canal Place. The Rivergate Convention Center is still there, but the Aquarium hasn't been built yet. Click on the image to make it larger.
This was before the 1984 World's Fair along the Riverfront took down many of the wharf warehouses and put up the large number of exhibition buildings for the fair, some of which became part of the Riverwalk shopping mall.