Greenwich Foot Tunnel south entrance and Cutty Sark British Clipper Ship, Greenwich, London, England, United Kingdom, Europe

Village women in village communal area preparing sari length of coloured cotton for weaving, Ganeshpahar village, Assam, India

Chambered cairn at Cairnholy, the area in front of the wall and Sentinel Stones is believed to have been for worship or communal purposes, near Creetown, Dumfries and Galloway, Scotland, United Kingdom, Europe

Chambered cairn at Cairnholy, the area in front of the wall and Sentinel Stones is believed to have been for worship or communal purposes, near Creetown, Dumfries and Galloway, Scotland, United Kingdom, Europe

Barn Owl (Tyto alba). At its nest. A former communal nest of Sociable Weavers (Philetairus socius). Kalahari Desert, Kgalagadi Transfrontier Park, South Africa.