437
Smog shrouded the city
UK. London. On Westminster Bridge. (REUTERS / Olivia Harris)
India. Agra. Taj Mahal. (AP Photo / Pawan Sharma)
India. Allahabad, Uttar Pradesh. (AFP PHOTO / SANJAY KANOJIA)
Qatar. Doha. (EPA / YOAN VALAT)
China. Beijing. View Guomao Bridge. (REUTERS / Jason Lee)
USA. Boston, Massachusetts. Boston Harbor. (AP Photo / Michael Dwyer)
USA. New York. Liberty Island. (AP Photo / Santiago Lyon)
USA. Washington DC. Washington Monument. (AP Photo / J. David Ake, File)
Canada. Vancouver. Burrard Inlet. (AP Photo / Darryl Dyck)
UK. London. (REUTERS / Russell Boyce)
USA. Weehawken, New Jersey. Hudson River. (REUTERS / Gary Hershorn)
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India. Agra. Taj Mahal. (AP Photo / Pawan Sharma)

India. Allahabad, Uttar Pradesh. (AFP PHOTO / SANJAY KANOJIA)

Qatar. Doha. (EPA / YOAN VALAT)

China. Beijing. View Guomao Bridge. (REUTERS / Jason Lee)

USA. Boston, Massachusetts. Boston Harbor. (AP Photo / Michael Dwyer)

USA. New York. Liberty Island. (AP Photo / Santiago Lyon)

USA. Washington DC. Washington Monument. (AP Photo / J. David Ake, File)

Canada. Vancouver. Burrard Inlet. (AP Photo / Darryl Dyck)

UK. London. (REUTERS / Russell Boyce)

USA. Weehawken, New Jersey. Hudson River. (REUTERS / Gary Hershorn)

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