Columbia subject headings:
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Railroads--Middle East--History.
Railroads--Saudi Arabia--History.
Harvard subject headings:
Muslim pilgrims and pilgrimages--Saudi Arabia--Mecca.
Railroads--Middle East--History.
Railroads--Saudi Arabia--History.
Princeton subject headings:
Hejaz Railway.
Railroads--Jordan.
Railroads--Saudi Arabia.
Railroads--Syria.