Stacked rocks on a shore overlooking Broken Bow Lake at Beavers Bend State Park, Oklahoma.
Stacks of river stones along the shore of the Llano River near Mason, Texas.
A stack of river stones along the shore of the Llano River near Mason, Texas.
Stacked rocks spotted in a dry riverbed at Devil’s Den State Park, Arkansas.
Stones stacked on a rocky shore in Juneau, Alaska.
An inukshuk—a stone landmark traditionally constructed by the Inuit of far north Canada, Alaska and Greenland—inexplicably found on a rocky beach on Cozumel, Mexico.