The current Jelling church was built of limestone around the year 1100. Archaeologists have found traces of three earlier wooden churches on the site. The first wooden church built on the site of the present edifice was the largest of its kind anywhere in Scandinavia. Archaeological evidence suggests that it was built in the later 10th century, during the period around 960 when Harald Bluetooth introduced Christianity into Denmark, as he proclaims on the larger of the two runic stones.
The part of the church burned down in 1679 and it was restored with a new porch. The pulpit dates from the 1650s. Mural paintings were in bad shape until Julius Magnus Petersen replaced them with copies in 1875. Jelling church is part of the UNESCO World Heritage site with Jelling mounds and runestones.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.