Day 4

History trip to Poland and Germany Day 4: We spent the morning exploring the Wieliczka salt mine. The mine dates back to the Middle Ages and was the main source of revenue for the Polish monarchy. We spent nearly 4 hours underground and walked through almost 2 km of tunnels which still only accounts for 1% of the total size of the mine. After dinner we had a wonderful time exploring Kraków on the tram system.