barrel and groin vaults on white part of building. smaller barrel vaults on front of church. Wawel Cathedral (Polish: katedra wawelska), is a Roman Catholic church located on Wawel Hill in Kraków, Poland. Completed 11th century.
the whole front of the church is a series of barrel vaults. The Cathedral of Christ the Saviour is a cathedral in Moscow, Russia, on the northern bank of the Moskva River, a few blocks southwest of the Kremlin. With an overall height of 103 metres, it is the tallest Orthodox Christian church in the world. 1883