Gløshaug Church is a wooden stave church constructed in 1689 and seats about 100 people. The site of the church has been used all the way back to around 1160. It originally was a St. Olaf church according to Grankvist. A manuscript from 1597 calls the church then 'Olafshougs Kirke i Hærø fierding', meaning St. Olaf's Church of Harran. St. Olaf is the patron saint of Norway. The first church building on this site was built around 1170, and it was restored in 1433 and 1510. In 1689, the old church was replaced by a new stave church, which still stands today.
In the 1800s and 1900s, several Englishmen (some of those were noblemen) owned houses along the river at Gartland, where they lived during their stay in Grong. One was Thomas Merthyr Guest, a man of considerable wealth. He bought two Gartland farms and in 1873 the old Gløshaug Church. Grong municipality wanted to tear down the old church and build a new church for Harran, but instead Mr. Guest restored it. The new Harran Church was put up at Fiskum in the village of Harran. Mr. Guest's widow sold the church in 1908 to a local farmer who in turn in 1910 gave the church to the municipality.
References:The stone church of Gamla Uppsala, built over the pagan temple, dates from the early 12th century. Due to fire and renovations, the present church is only a remnant of the original cathedral.
Before the arrival of Christianity in Sweden, Gamla Uppsala was the seat of Swedish kings and a ceremonial site known all over northern Europe. The settlement was home to royal palaces, a royal burial ground, and a great pagan temple. The Uppsala temple, which was described in detail by Adam of Bremen in the 1070s, housed wooden statues of the Norse gods Odin, Thor and Freyr. A golden chain hung across its gables and the inside was richly decorated with gold. The temple had priests, who sacrificed to the gods according to the needs of the people.
The first Christian cathedral was probably built in the 11th century, but finished in the 12th century. The stone building may have been preceded by a wooden church and probably by the large pagan temple.