China migrant workers from the countryside waiting outside guangzhou train station, guangdong province

China migrant workers from the countryside working in construction in kunming, yunnan province

China migrant worker as self-employed cleaner in xiamen in fujian province

Philippino housekeepers gathering together on Sundays at HSBC Bank hall, Central district, Hong Kong, China, Asia

Asian farm workers employed to pick courgettes (zucchini) in Kinglake, Victoria, Australia, Pacific

Sahar at right and Houriye at left, both 15 years old, Girls picking chards harvest, day laborers, child labour, syrian refugees, in Bar Elias, Bekaa Valley, Lebanon

Minors picking the potato harvest, day laborers, child labour, syrian refugees, in Bar Elias, Bekaa Valley, Lebanon

Khaled 13 years old, picking tomatoes harvest, day laborer, child labour, syrian refugee, Arsal, Bekaa Valley, Lebanon

Khaled 13 years old, picking tomatoes harvest, day laborer, child labour, syrian refugee, Arsal, Bekaa Valley, Lebanon

Ahmad, 16 years old, works with metals and dangerous machinery, child labour, syrian refugee, in Arsal, Bekaa Valley, Lebanon

At right Khaled 13 years old. At left his brother Ibrahim 15 years old, picking cucumbers harvest, day laborers, child labour, syrian refugees, Arsal, Bekaa Valley, Lebanon

Sahar at left and Houriye at right, both 15 years old, Girls picking chards harvest, day laborers, child labour, syrian refugees, in Bar Elias, Bekaa Valley, Lebanon

Iftikar, 12 years old, and his companions picking the potato harvest, day laborers, child labour, syrian refugees, in Bar Elias, Bekaa Valley, Lebanon

Children picking the potato harvest, day laborers, child labour, syrian refugees, in Bar Elias, Bekaa Valley, Lebanon

Women working, picking chards harvest, day laborers, syrian refugees, in Bar Elias, Bekaa Valley, Lebanon

demolition in old town, Lao Xi Men, redevelopment area, living amongst demolished houses, migrant worker, living in demolished houses and self built shacks, slum, Living amongst ruins, playing majong

Indian migrant worker for roadworks washes in the morning on the outskirts of the oasis Hundar, Nubra valley, Ladakh, India, Himalayas

Technician with beard and helmet works in a workshop, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet works in a workshop, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet works in a workshop, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet works in a workshop, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet working in a recycling yard, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet works in a workshop, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet working in a recycling yard, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet works in a workshop, Freiburg, Baden-Wuerttemberg, Germany, Europe

Technician with beard and helmet working in a recycling yard, Freiburg, Baden-Wuerttemberg, Germany, Europe

A young migrant worker listens to music on a mp3 player as he walks back to his dorm after a day of work on the Olympic venues, Beijing, China.

The China Central Television Building under construction in Beijing, China. The imposing building was designed by Dutch architect Rem Koolhaas, cost an estimated US $600million, and is scheduled be completed in time for the Beijing Olympics in 2008.