Afghanistan, General, Kirghiz woman cooking over open fire with surrounding wall of packed mud or clay.

Afghanistan, General, Kirghiz nomad woman cooking in open topped clay oven outside yurt.

Namibia, Namib Desert, Clay pan with dry cracking floor where water collects when it rains.

England, Cornwall, Industry, Open cast china clay mine.

England, Cornwall, Industry, Open cast china clay mine.

England, Cornwall, Industry, Open cast china clay mine.

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

India, Uttar Pradesh, Varanasi, A chai boy serving tea.

India, Uttar Pradesh, Varanasi, A chai boy serving tea.

India, West Bengal, Kolkata, A painter adds colour to a durga statue in the Kumartuli district.

India, West Bengal, Kolkata, A painter adds colour to a durga statue in the Kumartuli district.

India, West Bengal, Kolkata, A painter adds colour to durga statues in the Kumartuli district.