Runestones were placed on selected spots in the landscape, such as assembly locations, roads, bridge constructions, and fords. In medieval churches, there are often runestones that have been inserted as construction material, and it is debated whether they were originally part of the church location or had been moved there. In southern Scania, runestones can be tied to large estates that also had churches constructed on their land. In the Mälaren Valley, the runestones appear to be placed so that they mark essential parts of the domains of an estate, such as courtyard, grave field, and borders to neighbouring estates. Runestones usually appear as single monuments and more rarely as pairs. In some cases, such as the Hunnestad Monument, they are part of larger monuments together with other raised stones.