The Burj Khalifa contains 77 elevators.
North Caucasus Economic Region -LRB- Северо - Кавказскии экономическии раион tr.  : Severo-Kavkazsky ekonomichesky rayon -RRB- is one of 12 economic regions of Russia .. economic regions of Russia. economic regions of Russia. It comprises the whole of the North Caucasian Federal District and the western federal subjects of the Southern Federal District .. North Caucasian Federal District. North Caucasian Federal District. federal subjects. Federal subjects of Russia. Southern Federal District. Southern Federal District. In this area , descending northward from the principal chain of the Caucasus Mountains to a level plain , are found rich deposits of oil , natural gas , and coal .. The major cities are Rostov-on-Don , Krasnodar , Grozny , Vladikavkaz , and Novorossiysk .. Rostov-on-Don. Rostov-on-Don. Krasnodar. Krasnodar. Grozny. Grozny. Vladikavkaz. Vladikavkaz. Novorossiysk. Novorossiysk. Don. Don River ( Russia ). Sochi is a popular resort .. Sochi. Sochi. Farm machinery , coal , petroleum , and natural gas are the chief products .. The Kuban River region , a fertile black-earth area , is one of the chief granaries of Russia .. Kuban River. Kuban River. black-earth. chernozem. Wheat , sugar beets , tobacco , rice , and sunflower seeds are grown , and cattle are raised .. Other rivers include the Don , the Kuma , and the Terek , and the Volga-Don Canal is a major transportation route .. Don. Don River ( Russia ). Kuma. Kuma River ( Russia ). Terek. Terek River. Volga-Don Canal. Volga-Don Canal