Saudi Arabia stands out as one of the wealthiest nations in the world mostly due to its crude oil reserve. However, tourism here is also big because of the Mecca, which is a highly revered mosque by the world’s 1.8 billion Muslims. Saudi Arabia is famous all over the world for its vast oil reserve. In 2017, the country made 230 billion USD in oil exports to countries like China, Japan, US, South Korea, India, and Singapore. Oil reserves are valued currently at 34 trillion USD, and it’s expected to last for the next 90 years. Click the next ARROW to see the next photo!