Saudi Arabia, a nation in Western Asia, is officially known as the Kingdom of Saudi Arabia (KSA). It occupies the majority of the Arabian Peninsula, making it Asia's fifth-biggest country, the Arab world's second-largest, and the largest in Western Asia and the Middle East. While on the west Saudi is bordered by the Red Sea, on the east by Jordan, Iraq, Kuwait, the Persian Gulf, Qatar, and the United Arab Emirates, on the southeast and south it is covered by Oman and Yemen. All the vast landscapes here are made up of dry deserts, lowlands, steppe, and mountains. It is the only nation with coastlines on both the Red Sea and the Persian Gulf. Riyadh is its capital, and Mecca and Medina are the two most sacred cities in Islam located in this nation, making Saudi a major attraction for tourists.