Saudi Arabia is as some oldest history on the planet. Saudi Arabia is one of the richest countries in the world, thanks to its oil field, whose reserves can fill almost 5 million Olympic swimming pools. The country which is the 5th largest producer of natural gas and a place of pilgrimage for Muslims has some of the most expensive cities to live in. These are some of them; Tenth on the list is Tabuk. The cost of living in the heart of the city for a month cost 400.00, to live outside the city for a month costs 400.00. Click the next ARROW to see the next City!