Hakka Tulou round earth buildings, UNESCO World Heritage Site, Fujian Province, China, Asia

Hakka Tulou round earth buildings, UNESCO World Heritage Site, Fujian Province, China, Asia

Hakka Tulou round earth buildings, UNESCO World Heritage Site, Fujian Province, China, Asia

Top view of a pnk barrel sponge looking like a saucer against the cyan reef bottom, Cenderawasih Bay, West Papua, Indonesia.

Vibrant soft corals, Dendronephthya sp., thrive among the islands of Raja Ampat, Indonesia.

Hakka Tulou round earth buildings, UNESCO World Heritage Site, Fujian Province, China, Asia

Agriculture - Aerial view of center pivot irrigated circular agricultural fields / near Farmington, New Mexico, USA.

Agriculture - Aerial view of fallow center pivot irrigated circular agricultural fields / near Circle, Texas, USA.

Close up of leaves

Fairy circles and mountains, Aerial view, Namib Naukluft Park, Namib Desert, Namibia.