overview opening hours The Church of St. Prokop dominates this picturesque square at the foot of “upper Žižkov” and, along with the nearby Lipanská tram stop, forms one of a number of Žižkov’s focal points. The Neo-Gothic church was built at the turn of the 20th century. opening hours regular roman catholic masses: Mon, Wed, Thu, Fri: 18:00 Sa: 8:00 Su: 9:30 Guided tours are available by appointment only. more about opening hours opening hours regular roman catholic masses: Mon, Wed, Thu, Fri: 18:00 Sa: 8:00 Su: 9:30 Guided tours are available by appointment only.