In Madinah Province, major tourist attractions include the ruins of the historic Hejaz Railway that was built by the Ottomans and destroyed during the First World War; Madain Saleh, location of 131 tombs of the Nabatean tribes who settled and flourished in the area around 500 BC; and Al-Ula, one of the oldest human settlements.
The International Tourism Organization has reported that 7.3 million people visited the Kingdom last year, 3.5 million coming for umrah (the lesser pilgrimage), 1.3 million for Hajj, and 2.5 million for medical treatment and conferences.