When you walk through the mainstreet of Krakow’s city center, you can’t miss this church. It is located near the building Pope John Paul II lived in during his years in Krakow. It took 22 years to build this church and they completed it in 1619. Have a look at the beautiful exterior and then go inside to see a Foucault pendulum. They recently added a National Pantheon in the fault, that houses the graves of several important people.