Vindobona

A Roman legionary fortress established in the 1st century AD on the Danube frontier in the province of Pannonia, on the site of modern Vienna. The camp covered about 20 hectares and housed around 6,000 soldiers, with its wall trace still visible in Vienna's inner-city streets including Graben, Naglergasse, and Tiefer Graben. Emperor Marcus Aurelius died here on 17 March 180 AD during a campaign against Germanic tribes. A civilian settlement grew southeast of the fort from the 3rd century. The fortress suffered a devastating fire in the early 5th century. Now part of the UNESCO Danube Limes World Heritage Site, remains are displayed at the Romermuseum beneath Hoher Markt.