Arabia has intrigued travellers for centuries. Its vast swathes of desert were the swaddling clothes of infant Islam, the Arab race and of Arabic, a language considered holy by Muslims. Its also home to two of Islams holiest cities and a host of modern, thriving, oil-rich metropolises. Todays Saudi Arabia has held on to its mystique by being incredibly difficult to visit. But if you can find someone to sponsor you or decide to take an expensive approved tour, its worth coming here for the desert and mountain scenery, and some of the Middle Easts best archaeological sites.