Nehemiah built a wall around Jerusalem in 52 days. That is amazing in and of itself– but just how big was this wall? (Nehemiah 6:15)
We don’t have exact measurements of the walls that Nehemiah built, but we do know the basic size of the land of Jerusalem at the time was 30 acres (source).
Doing some crude online calculator math it would appear that the wall surrounding that kind of acreage would be almost a mile long.
If Nehemiah built the wall on top of portions of Hezekiah’s former great wall it would have been 20-25 feet wide, and between 25-40 feet tall. (To see pictures of part of Hezekiah’s wall go here!