Historic England has published more than 400,000 aerial photographs online for the first time, including hundreds of locations in the East.
The pictures include historic landmarks and cropmarks showing hidden archaeology beneath the surface.
Historic England hopes to add more than six million aerial images to its explorer tool in the coming years.
Tony Calladine, from Historic England, said the pictures, dating back to 1919, would help "unlock the mysteries of England's past".
One of the oldest photos in the archive is of Ipswich Town Hall and Corn Exchange, taken in 1921
The remaining 100,000 images come from the Historic England Archive aerial photography collection, which includes interwar and post-war images from Aerofilms Ltd and the Royal Air Force.
Mr Calladine said: "The remarkable pictures of the East of England give a fascinating insight into our local areas, allowing people to see how their street and their town centre looked when their great-grandparents lived there."
You can read more and view multiple aerial photographs in the BBC web site at: https://www.bbc.com/news/uk-england-norfolk-60834666.