Tourism in the Arab World encompasses a wide array of activities and tourist attractions in an area spanning more than 13 million square kilometers. The Arab World mainly consists of the Arabic-speaking countries and populations in North Africa and Western Asia. The standard definition of the Arab world comprises the 22 countries and territories of the Arab League: 10 countries in Africa, and 12 countries in Asia. Geographically, it stretches from the Atlantic Ocean in the west to the Arabian Sea in the east, and from the Mediterranean Sea in the north to the Horn of Africa and the Indian Ocean in the southeast. It has a combined population of around 422 million people.The Arab World is divided into five main geographic regions: the Maghreb in Northwest Africa, the Nile Valley and the Horn of Africa in Northeast Africa, the Levant in the eastern Mediterranean, and the Arabian Peninsula in southwestern Asia. Egypt is the only transcontinental country by virtue of the Sinai Peninsula, which lies in Asia.