On my walk through Friesach, I discovered this clever idea to visualize the medieval gate called Posttor or Olsator in its shape of about 1200 AD. The sign was transparent, so I was able to match past and present.
A similar info board I saw in the Tyrolean place of Lermoos several years later. it shows a former Roman path in a meadow of today.
Sources / More info
- Friesach Description of Friesach on Wikipedia (ENG)