Mecca city, but Mecca no longer plays a major role in Saudi Arabia's economy, which is mainly based on oil exports. The few industries operating in Mecca include textiles, furniture, and utensils. The majority of the economy is service-oriented. Nevertheless, many industries have been set up in Mecca. Various types of enterprises that have existed since 1970: corrugated iron manufacturing, copper smithies, carpentry shops, upholstering establishments, vegetable oil extraction plants, sweets manufacturies, flour mills, bakeries, poultry farms, frozen food importing, photography processing, secretarial establishments, ice factories, bottling plants for soft drinks, barber shops, book shops, travel agencies and banks. The city
Mecca infrastructure, home to structures such as the Abraj Al Bait, also known as the Makkah Royal Clock Tower Hotel, the world's fourth tallest building and the building with the third largest amount of floor area. During this expansion, Mecca has lost some historical structures and archaeological sites, such as the Ajyad Fortress. Today, more than 15 million Muslims visit Mecca annually, including several million during the few days of the Hajj. As a result, Mecca has become one of the most cosmopolitan cities in the Muslim world, although non-Muslims are prohibited from entering the city. "Mecca" is the familiar form