Worker Stirring Dye Mixtures in Brown and Black Leather Vats at Chouara Tannery, Fes, Morocco

Tomb of princess Seshseshet Idut, complex of Saqqara, UNESCO World Heritage Site, Egypt, North Africa, Africa

Restoration of Notre Dame Cathedral, Paris, France

Employees lighting hundreds of lanterns scattered around the site for night tours of Hegra, UNESCO, AlUla, Medina Province, Saudi Arabia

Tannery, Medina, UNESCO, Fes, Morocco

Tannery, Medina, UNESCO, Fes, Morocco

Tannery, Medina, Fes, UNESCO, Morocco

Tannery, Medina, Fes, UNESCO, Morocco

Kofar Mata Dye Pits, Kano, Nigeria

Men dyeing Indigo blue, Kofar Mata Dye Pits, Kano, Nigeria

Tannerie Chouara, Medina, Fes, UNESCO, Morocco

Sweeper at Prambanan Temple Compounds, UNESCO World Heritage Site, region of Yogyakarta, Java island, Indonesia, Southeast Asia, Asia

Boswellia sacra (frankincense) (olibanum-tree), Sultanate of Oman

Tannery workers overseeing dye pits in a traditional leather tannery, below yellow walls, Fes, Morocco

Archaeologists at work, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Workers maintaining stonework Eagles and Jaguars platform, Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Archaeologists at work, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Workers maintaining stonework at The Nunnery (Edificio de las Monjas), Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Archaeologists at work, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America

Seller of nuts, Medina, UNESCO World Heritage Site, Fez, Morocco, Africa.

Bab Makina, Fez El Jedid, Morocco

Workers, in Tannery, Medina, UNESCO World Heritage Site, Fez, Morocco, Africa.

Craftsman making a gravestone, Medina, UNESCO World Heritage Site, Fez, Morocco, Africa.

Dyed yellow goat skins drying on the hill El Kolla, Fez, Morocco.

Gardener working,Zen garden symbolizing Mount Fuji and the sea, in Ginkaku ji temple, Kyoto, Kansai, Japan

Carpenter,in Nejjarim square, Medina, UNESCO World Heritage Site, Fez, Morocco, Africa.

Dyer working, Medina, UNESCO World Heritage Site, Fez, Morocco, Africa.

A man washed dishes by hand in a bowl outside a restaurant in the ancient town of Furong, China.

Workers prepare transuranic nuclear waste from America's nuclear weapons program for long-term storage at the Waste Isolation Pilot Plant, here a fork lift moves a TRUPACT shipping container used to transport nuclear waste by truck from distant places.; t

Workers prepare transuranic nuclear waste from America's nuclear weapons program for long-term storage at the Waste Isolation Pilot Plant, here a worker checks radiation levels on the outside of storage containers because they are stored in rooms carved o

Kharanaq, Iran - February, 2008: Senior man harvesting a crop of carrots outside the historical ancient city of Kharanaq which lies in a dramatic valley where rugged mountains, desert and farmland all come together.

Fisherman sitting and repairing a net, Hoi An Ancient Town, Quang Nam, Vietnam

Fisherman throwing a net from a boat, Hoi An Ancient Town, Quang Nam, Vietnam

One of the world's most famous train rides thru the Inca Sacred Valley from Cuzco to Machu Picchu, Peru