In the 17th century, Copenhagen had become home to a sizeable garrison. A military church was built at Kastellet in 1670 but its modest size only allowed it to serve the personnel at the fortress. The rest of the troops in the city had to use Church of Holmen, a former anchor forge which had been converted into a naval church in 1619.
When Sophie Amalienborg burned down in 1689, its chapel survived the flames and was subsequently put at the disposal of the Army. However, the small building which had been built for members of the royal court only served as a temporary solution. Christian V therefore provided a tract of land at Dronningens Tværgade for the construction of a new church for the Army and military engineer Georg Philip Müller completed a set of renderings in 1697. When Frederick IV ascended the throne in 1699, he moved the project to a site in the southernmost section of Sophie Amalienborg's former gardens. Construction began in 1703, still to Müller's design but under the supervision of Domenico Pelli. The following year it was decided to built the church to a larger and somewhat modified design and the project was taken over by General Master Builder Wilhelm Friedrich von Platen. The church was inaugurated on 24 March 1706.References:
The Externsteine (Extern stones) is a distinctive sandstone rock formation located in the Teutoburg Forest, near the town of Horn-Bad Meinberg. The formation is a tor consisting of several tall, narrow columns of rock which rise abruptly from the surrounding wooded hills. Archaeological excavations have yielded some Upper Paleolithic stone tools dating to about 10,700 BC from 9,600 BC.
In a popular tradition going back to an idea proposed to Hermann Hamelmann in 1564, the Externsteine are identified as a sacred site of the pagan Saxons, and the location of the Irminsul (sacral pillar-like object in German paganism) idol reportedly destroyed by Charlemagne; there is however no archaeological evidence that would confirm the site's use during the relevant period.
The stones were used as the site of a hermitage in the Middle Ages, and by at least the high medieval period were the site of a Christian chapel. The Externsteine relief is a medieval depiction of the Descent from the Cross. It remains controversial whether the site was already used for Christian worship in the 8th to early 10th centuries.
The Externsteine gained prominence when Völkisch and nationalistic scholars took an interest in the late 19th and early 20th centuries. This interest peaked under the Nazi regime, when the Externsteine became a focus of nazi propaganda. Today, they remain a popular tourist destination and also continue to attract Neo-Pagans and Neo-Nazis.