The Church of Our Lady (Vor Frue Kirke) is Copenhagen's cathedral, a severe neoclassical building from 1829 facing the old university. Its claim to fame is the interior: a long nave lined with Bertel Thorvaldsen's monumental marble sculptures of Christ and the Twelve Apostles, among the most iconic works of 19th-century European sculpture. The white marble figures fill the church with a cool, calm presence.
The Christ figure behind the altar — arms outstretched, head bowed — is the original of a type that has been reproduced in churches worldwide; Thorvaldsen considered it his masterpiece. The Apostles line the nave, each with a distinctive pose and attribute. Entry is free. It is the single most important interior in Copenhagen for figurative sculpture, and well worth 20 minutes even if churches do not normally interest you.