Huge mushroom shaped iceberg in Dorian Bay, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

Huge mushroom shaped iceberg in Dorian Bay, western side of the Antarctic Peninsula, Southern Ocean, Polar Regions

A murmuration of starlings, numbering well over a million birds, form the shape of an atomic bomb mushroom cloud as they come in to roost at dusk on the Avalon Marshes at Shapwick Heath Nature Reserve in Somerset

Starlings, a murmuration of a million birds, in mushroom cloud shape as they drop to roost on Avalon Marshes, UK

Starlings, a murmuration of a million birds, in mushroom cloud shape as they drop to roost on Avalon Marshes, UK

Tomatoes with peppers and cheese on pizza

Balanced Rocks, Marble Canyon, Lee's Ferry, Arizona, USA

Sandstone rock formation at Tikobaouine, Tassili n'Ajjer National Park, Unesco World Heritage Site, Wilaya Illizi, Algeria, Sahara, North Africa

Micronesia, Palau, Rock Islands, Mushroom-shaped island surrounded blue ocean.