18. Gettysburg Battlefield
There are very few actual photographs of the Civil War, especially the battle of Gettysburg. There are many paintings depicting the battlefield of the costliest American battle known to date, but few photographs like this have been circulated. So many people died in this battle, it’s referred to as “A harvest of death” with a body count of nearly 8,000, but it swayed the war in favour of the Union and shaped America as we know it today.