I’ll post two postcards today, because I’ve actually already written a post about this destination! Wieliczka Salt Mine near Krakow, Poland is an amazing mine that has was in operation from the 13th century until 2007. The tunnels themselves are over 190 miles (300km) long!
The mine has three chapels and an entire cathedral, all contained within its subterranean confines. The image below is of the Chapel of Saint Kinga. It supposedly has some of the best acoustics in Europe!
I can’t wait to go see this engineering marvel when we visit Poland this summer!