Hammer of Thor
Quebec, Canada
The Hammer of Thor is a 3.3 metres (10.8 ft) tall, t-shaped, man-made rock formation called an inuksuk located along the Arnaud River in the Ungava Peninsula, Quebec, Canada. It was discovered in 1964 by an archaeologist who thought it was erected by Vikings. Far more likely is that it is part of the long inuksuk building traditions of the Dorset culture and related groups, rather than being constructed by Norse colonists.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).