Let's look at Jerusalem to see how densely populous and built-up it was almost 100 years ago.
Before and around 1931, the area around the American Colony:
And looking east out over Government House
And looking back from the south
Old City looks crowded, and especially the Jewish Quarter, partially emptied out in 1936 and then total ethnic cleansing in 1948 but the cemetery east (left) of the Temple Mount looks sparse
Some neighborhoods of "Arab East Jerusalem"
Mount Scopus, Hadassah and the Hebrew University
Ein Karem and looking west
Looking north to El-Jib
Perspective is always welcomed.