Wikimedia has a beautiful vintage map of Cairo by cartographer Alexander Nicohosoff. It dates to 1933, but would be ideal for any classic-era adventures in the city.
Update: Raven is a god amongst men. He left this as a comment, and it's awesome:
Point of special interest at F-5: the Egyptian Museum of Antiquities.
If you would like to follow Harry Houdini's travels (or travails) in "Under the Pyramids" by map, here are grid references:
... we halted at the great Gare Centrale ["Main Station" at C/D-7/8].
whilst the very theatre where I was vainly requested to play, and which
I later attended as a spectator, had recently been renamed the
"American Cosmograph" [period program; now the Cosmos Cinema, still at E-7].
We stopped at Shepherd's Hotel [actually "Shepheard's Hotel" E-7]....
Guided by our Baedeker, we had struck east past the Ezbekiyeh Gardens [E-8] along the Mouski in quest of the native quarter....
At length Abdul took us along the Sharia Mohammed Ali [F-8 → I-9] to the ancient mosque of Sultan Hassan [I-9], and the tower-flanked Bab-el-Azab [the original *gate* of Saladin's Citadel], beyond which climbs the steep-walled pass to the mighty citadel [J-10]
that Saladin himself built with the stones of forgotten pyramids. It
was sunset when we scaled that cliff, circled the modern mosque of
Mohammed Ali [K-11], and looked down from the dizzying
parapet over mystic Cairo — mystic Cairo all golden with its carven
domes, its ethereal minarets, and its flaming gardens.
Far over the city towered the great Roman dome of the new museum [the Egyptian Museum at F-5]....
The next morning we visited the pyramids, riding out in a Victoria across the great Nile bridge with its bronze lions [Qasr El Nil, G-4], the island of Ghizereh with its massive lebbakh trees [covers B-2+3 to H-3+4], and the smaller English bridge to the western shore [H-3]. Down the shore road we drove, between great rows of lebbakhs and past the vast Zoölogical Gardens [K-2] to the suburb of Gizeh [on map as "El Giza" N-1+2], where a new bridge to Cairo proper has since been built [Abbas II Bridge across Roda Island, L-2+3+4]. Then, turning inland along the Sharia-el-Haram [L-2 → M-1 and leaving the map]....