There are many sources where Reyholt is mentioned from the Middle Ages to the present. Some of them mention antiquities that are not palpable in the present. During past centuries, the area has been the subject of archaeologists and other scholars. Not to mention the activities of the church which has been in Reykholt from early Christianity in Iceland.  Documents and reports from early time mention for example fortification, paths and sheep tracks and more which nothing is left of today, but only written documents can testify.

The most distinguished antiquities in Reykholt is without doubt the old hot water tub of Snorri Sturluson, along with the conduits which piped both hot water and steam from the hot water spring Skrifla, into the house and the old farm site which has been excavated by archaeologists.

Few artefacts have also been preserved from past centuries in Reykholt. Among them is the old manuscript, Reykjaholtsmáldagi form the 13th century. This manuscript is believed to be one of the oldest primary text preserved in the old Nordic language. Reykjaholtsmáldagi is kept in the National Archives.

Other antiquities of the church in Reykholt are two church bells, one from the middle ages, the other from the 17th century, doorknob and a part of an altar.

Among other antiquities in Reykholt is the old timber church that was built in 1886 to1887. The church has now been decremented and belongs to the house collection of the National Museum of Iceland. The old timber and turf farm stood close to he church. Aside the farm was a well, which has not yet been excavated.

The old farm stood still when the construction of the new schoolhouse began in 1930 but it was demolished shortly after. 

Parts of church ruins have been excavated in Reykholt. Archaeological research is presently under way on the site. Archaeologists from the National Museum and other institutions will continue this work. Already they have found four building stages, the youngest one from 19th century. Several written sources indicate that a church was built in Reykholt as early as in the 11th century, and therefore archaeologists are hoping to find ruins and artefacts from earlier building stages.

Reconstruction of of the old timber church began in the year 2001. The aim was to bring the church as close to its original design as possible. The church is a good example of a timber church as they were built in the late 19th century.

During the reconstruction work, ancient smithy was found under the church.

The graves of Snorri Sturluson and his family is believed to be in the church yard, although there are no traces of the grave stone which is mentioned in written sources.  This spot is called Sturlungareitur and is about 6 meters northwest of the church ruins.In 1837 two scholars were investigating places of the origins of the sagas, among them was Reykholt as one of the main centre in the Middle Ages in Iceland. These two scholars, the Danish philologist Kristian Kaalund and the reverend Þorsteinn Helgason assessed that they had found the gravestone of Snorri with his name in scripted in the stone with old runic writing. No remains are left of this stone, and no other reliable sources confirmed its existence.

The old vicarage had been neglected for a long time and in 1930 it was very dilapidated. Therefore a decision was made on behalf of the government to build a new farm that would be in more harmony and suit this important and historical place, where hundreds of tourist and travellers visited every year. According to the spirit of the time they began to construct the outhouses, which were well designed and made of concrete, the new and promising building material. However when the Hvítárbakki school was moved to Reykholt, the best place for the new building was considered to be on the same place as the outhouses of the old farm had been build. The main reason was the possiblilty to utilise hot water from the geysir Skrifla and of course it was also important to be close to the vicarage and the church in Reykholt.

The new schoolhouse was designed by the architect Guðjón Samúelsson which was the state architect at that time. It was constructed in the years 1930 and 1931, but two extensions were built few years later.