Here are a couple of salt cubes that are displayed in the Geological Sciences building at Jagiellonian University in Krakow, Poland. Sorry for the lack of scale but the display is ~6 feet across. Unfortunately I did not have time to visit the salt mine but these come from one of the largest salt mines in the world - Wieliczka Salt Mine. Imagine these salt cubes being sprinkled on your food. I thought these pretty cool and I wanted to share them.