الفترة:
Subjects: Irbid; Jordan; Cultural property; History
Subjects: Jordan
Subjects: Amman; Jordan
Subjects: Jordan; Geology; History
Subjects: Jordan; Mechanical properties; Physical properties; Building materials
Subjects: Crusades
Subjects: Jordan; Antiquities
Subjects: Middle East; Economic conditions; Social conditions
Subjects: Jordan; Twentieth century; Wadi Musa; History; Religions
Subjects: Caliphate; Islam