The Celts were in Austria long before the Romans were, but it was the latter who left a more lasting imprint. With a population of 30,000 at its peak, the Roman legion camp of Vindobona was considered the edge of the world. As old as the Roman presence in Vienna is, the Römermuseum only dates back to 2008. On the Hoher Markt, one of the oldest squares in the city (and one with a fabulous gilded baroque fountain), the museum lies right over the Roman officers’ compound. Displays on everything from cooking utensils to toys are enhanced with a 3-D film on life at the time. Across the square, the Ankeruhr, an intricate and gorgeous art nouveau mechanical clock, was erected in 1914 on a bridge joining two sections of the Anker insurance building.