Hvalsey is located near Qaqortoq, Greenland and is the site of Greenland's largest, best-preserved Norse ruins in the area known as the Eastern Settlement (Eystribyggð). The church house, which was first erected in the early 12th century, might have been built by Scots-Norse stonemasons as similar structures are found in Norway and Orkney.
The church house was exceptionally well built from carefully chosen stones that in some cases weigh in excess of five tons. The building was plastered with ground mussel shells (and so would have been white when in use) and was roofed with timber and turf. A 1408 wedding at the site's church is the last documented event to occur during the Norse settlement of Greenland. Archaeological evidence shows that over the next hundred years the last Norse settlements in Greenland slowly died out.