Frederik's Church

This guide to Frederik's Church in Copenhagen, better known as the Marble Church, starts with a puzzle: touch its walls and you're mostly touching limestone, not marble. It traces the building's stalled construction back to 1749, when King Frederik the Fifth laid the first stone, and the string of architects and rising ambitions that left the half-built shell standing roofless for over a century. Stand back to take in the copper dome, weathered green, among the largest in Scandinavia.