There is almost nothing to see at Albing, and that is exactly what makes it a good story. Under these fields near the confluence of the Enns and the Danube lay one of the largest Roman military bases ever built in what is now Austria, a full legionary fortress raised in the later second century, around the time of the Marcomannic Wars, when Rome was fighting hard to hold the Danube against peoples from the north. It was planned on a grand scale and then, it seems, given up very soon after, probably because the site was too exposed to floods. The legion moved a few kilometres south to Lauriacum, the camp at today's Enns.
Aerial photographs and surveys have traced the outline of walls, gates and barracks under the crops, so when you stand at the edge of a field near Sankt Pantaleon you are looking at a ghost the size of a small town. It is part of the Danube Limes UNESCO site, along with many far more visible remains, and it rewards a bit of imagination more than a camera.
The ride around here is gentle and open. Flat farmland runs down to the Danube with its power station and locks, and the roads are fast, mostly straight and well surfaced, with gusty wind from the west on many days. North of the river the land climbs into the granite hills of the Mühlviertel, where you will find far better curves, while south of Enns the roads begin to roll toward the foothills of the Alps. Across the Danube stands Mauthausen, whose concentration camp memorial is a sober and important place to visit if you have the time and the frame of mind.
For practical matters, ride to Enns, about six kilometres away. It is a proper town with fuel, shops and cafés around a main square dominated by a tall sixteenth-century city tower, and it likes to call itself the oldest town in Austria on the strength of a town charter from 1212. The museum there tells the story of Lauriacum and makes Albing make sense.
Come in early summer when the barley is up and low evening sun brings out faint crop marks in the fields; with a bit of luck you might spot the lines yourself. Otherwise, enjoy the irony of a mighty fortress that the river beat before any enemy could.