What's creating bizarre sand sculptures along Lake Michigan?

At first glance they look like the objects from an alien planet. Maybe Mars? Except there's a beach in the background and Mars doesn't have any of that. But where on Earth would someone find dozens of petrified totems of sand?
At first glance they look like the objects from an alien planet. Maybe Mars? Except there's a beach in the background and Mars doesn't have any of that. But where on Earth would someone find dozens of petrified totems of sand?

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チェスのコマのような砂の柱」が自然に形成された理由とは？ - GIGAZINE

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Photographer Finds Otherworldly Sand Sculptures Created by Wind

Spectacular sand sculptures on the shores of Lake Michigan

Wind Erodes Frozen Sand On Lake Michigan To Pretty Sand Sculpture

Weird sand 'chess pieces' dot Lake Michigan shore. Here's how they formed.

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