The land that gave birth to Martin Luther and the Protestant Reformation “has lost its faith” according to two German friends of mine. This article in Der Spiegel seems to bear this out as Protestants and Catholics sell off their buildings, some of which date back hundreds of years.
Europe in general has seen a steep decline in Christianity. While many people are born into a state church few participate and as a result the buildings are empty much of the time.
In some places the church buildings are being taken over by Islam as Islam grows across Europe (and here to for that matter).
This church in Duisberg, Germany is now Moslem and it’s in addition to a large Mosque already in the area.
Where the gospel is not preached then something other than the gospel will fill the void.