Hungary and Austria have a common border.
Hungary . It covers an area of 93,030 km2 , situated in the Carpathian Basin , and is bordered by Slovakia to the north , Romania to the east , Serbia to the south , Croatia to the southwest , Slovenia to the west , Austria to the northwest , and Ukraine to the northeast . The country gained widespread international attention regarding the Revolution of 1956 and the seminal opening of its previously-restricted border with Austria in 1989 , which accelerated the collapse of the Eastern Bloc .