Frederik's Church (Danish: Frederiks Kirke), popularly known as The Marble Church (Marmorkirken) for its rococo architecture, is an Evangelical Lutheran church in Copenhagen, Denmark. The church forms the focal point of the Frederiksstaden district. The church was designed by the architect Nicolai Eigtved in 1740 and was along with the rest of Frederiksstaden, a district of Copenhagen, intended to commemorate the 300 years jubilee of the first coronation of a member of the House of Oldenburg. 

The church was left incomplete and, in spite of several initiatives to complete it, stood as a ruin for nearly 150 years. In 1874, Andreas Frederik Krieger, Denmark's Finance Minister at the time, sold the ruins of the uncompleted church and the church square to Carl Frederik Tietgen. Tietgen got Ferdinand Meldahl to design the church in its final form and financed its construction. Due to financial restrictions, the original plans for the church to be built almost entirely from marble were discarded, and instead Meldahl opted for construction to be done with limestone. The church was finally opened to the public on August 19, 1894. (wikipedia.org)