Frederiks Kirke (Marmorkirken), Copenhagen

A beautiful marble church on the east side of the city. You can pick up this attraction on a walk out to or from the Little Mermaid. Quite compact circular building, unusual in that it does not extend much beyond the extent of it's dome, so it's basically round inside which is pretty neat. The dome is probably the best feature and we found ourselves sitting for quite a while looking up at it in contemplative quietness. A lovely building.

Just the thought of visiting a church made out of Marble is impressive enough, but the inside of the church definitely adds that "wow" factor. Even though it's not as ornate as other churches, the clean cut architecture of the Marble church is incredible! It's located near Amalienborg so it's nice to visit while you're looking around the castles; it has an incredible vibe and it resembles the cathedral of St. Peter's square in the Vatican, with a similar dome even though not nearly as impressive, but still beautiful! Free entrance.