Hohenburg Abbey dates back to around 690; it is located on Mont Ste Odile, a peak in the Vosges around 1,000m high from which there are fantastic views across Alsace to the Rhine and Germany.
For the more energetic, there are plenty of walks down and then back up the hillside, including a visit to the Ste Odile Source.
There is also a hotel and restaurant. read more