Carnuntum (Καρνοιις in Ptolemy) was an important Roman army camp in what is now Austria. It belonged originally to Noricum province, but after the 1st century was part of Pannonia. Its remains are on the main road halfway between Vienna and Bratislava, on the "Archaeological Park Carnuntum" in Lower Austria, extending over the area of today's villages Petronell-Carnuntum and Bad Deutsch-Altenburg.