The following outline is provided as an overview of and topical guide to Romania: Romania – unitary semi-presidential republic located in Central-Southeastern Europe, bordering the Black Sea, between Bulgaria and Ukraine. It also borders Hungary, Serbia, and Moldova. It covers 238,391 square kilometres (92,043 sq mi) and has a temperate-continental climate. With 19.9 million inhabitants, it is the seventh most populous member of the European Union. Its capital and largest city, Bucharest, is the sixth largest city in the EU. It encompasses the historical regions of Wallachia (including Dobruja), Moldavia (including Bukovina), Transylvania (including Banat, Maramureș, and Crișana). Romania derives from the Latin romanus, meaning "citizen of Rome".