England, Oxfordshire, Oxford, Christ Church.

Argentina, Neuquen province, Storage and processing facility for sand used in onshore unconventional oil and gas production.

Namibia, Namib Desert, Desert plant growing on wind rippled orange sand dune.

China, Camel train by Yellow River.

Namibia, Namib Desert, Sossusvlei, Desert sand dunes with lone tree in the foreground.

Mauritania, Fishing, Fishermen carrying nets hung on poles across their shoulders along beach.

Ireland, County Sligo, Patterns in the sand on Lissadell Beach.

Namibia, Namib Desert, Styar sand sune against blue sky.

Brazil, Crafts, Man making sand pictures in glass bottles with different coloured sand.

Namibia, Sossusvlei, Sand dunes and clay pan in The Namib Desert.

Namibia, Desert Sand dunes.

USA, Arizona, Monument Valley, A hot air balloon flying over the red sand dunes at Sand Springs during Balloon Festival in the Navajo Tribal Park.