Montenegro (full name, Republic of Montenegro) covers an area of approximately 13,800 sq km with a terrain consisting of a narrow coastal plain backed by rugged high limestone mountains and plateaux. Montenegro borders Albania, Bosnia and Herzegovina, Croatia, Kosovo and Serbia, and has 294 km of coastline. The country is divided into 21 municipalities: Andrijevica, Bar, Berane, Bijelo Polje, Budva, Cetinje, Danilovgrad, Herceg Novi, Kolasin, Kotor, Mojkovac, Niksic, Plav, Pljevlja, Pluzine, Podgorica, Rozaje, Savnik, Tivat, Ulcinj and Zabljak. Podgorica is the capital, with a time difference of 1 hour ahead of GMT. The currency is the euro, and the main export is aluminium. The population of approximately 672,000 people comprises an ethnic makeup that is 43% Montenegrin and 32% Serbian. The primary languages are Serbian and Montenegrin, and the predominant religions are Christianity and Islam.