The official language is Hungarian, also known as Magyar, which is part of the Finno-Ugric group and is the most widely spoken non-Indo-European language in Europe. Hungary is a member of the European Union, NATO, the OECD, the Visegrád Group, and the Schengen Agreement. The country's capital, and largest city, is Budapest. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine, and Romania to the east, Serbia, and Croatia to the south, Slovenia to the southwest and Austria to the west. Hungary i / ˈ h ʌ ŋ ɡ ər i / (Hungarian: Magyarország ( listen)) is a landlocked country in Central Europe.