Stone Labyrinths of Bolshoi Zayatsky Island

The densest concentration of Neolithic stone labyrinths in the world — 13-14 labyrinths packed into just 0.4 square kilometers on a small island in Russia's White Sea. The largest measures 25.4 meters in diameter. Over 850 boulder cairns are also present, suggesting the island served as a major ceremonial complex. The labyrinths date to approximately 3000-2000 BCE, contemporary with Newgrange and Stonehenge. Their remote island location — accessible only by boat across cold, dangerous waters — implies deliberate separation from everyday life: a sacred space requiring a sea crossing (threshold journey) to reach. UNESCO World Heritage Site as part of the Solovetsky Islands.