Four panoramas, extracted from a series of hand-coloured copperplate maps of the town and salt mine of Wieliczka, depict the everyday activities at the Wieliczka Salt Mine in the 17th century: miners carving away lumps of rock salt, horse mills powering water pumps and lifts, brine boiling on the surface, men praying in front of an underground altar sculpted in rock salt. The mine, in continuous operation since the 13th century, is a World Heritage Site and a major tourist attraction.
Poznań is the fifth largest city in Poland and one of the nation's oldest. In the early years of Poland's history, it was the seat of Polish rulers, some of whom are buried in the Poznań Cathedral. Located on the Warta river in west-central Poland, it is now the capital of Greater Poland and an important centre of education, industry, and trade, hosting regular international trade fairs. With high GDP per capita and low unemployment, it is Poland's most prosperous city after Warsaw. The city's most important cultural event is the annual Malta Theatre Festival.