Memory of Mankind is one of those quietly remarkable projects that hardly anyone visits but that captures the essence of Hallstatt's relationship with deep time. Founded by ceramicist Martin Kunze in 2012, it is an archive of fired-clay tablets storing texts, images, and personal stories chosen by contributors, deposited in a sealed chamber inside the salt mine.
There is a small visitor centre in the village with sample tablets and an explanation of the methodology — anyone can contribute a tablet for a fee, choosing what message to send to the deep future. Whether or not you commit to your own tablet, the visit is a thoughtful counterpoint to the postcard tourism elsewhere in the village, and a reminder that the Hallstatt salt has been preserving evidence of human life for at least 7,000 years already.