If you feel a sudden need to test your strength while in the vicinity of Reykjavík, you’re in luck. There is a 186-kilogram (410-pound) basalt rock that exists to be lifted. Before it was a vacation destination for tourists exploring western Iceland’s natural beauty, Húsafell was a farm and church estate. When Snorri Björnsson, who was pastor from 1756 to 1803, built a rock-walled pen for shearing sheep and milking goats, he placed this large basalt stone, known as Kviahellen, or “Pen Slab,” at the entrance. The stone became a…