China Central Television Building
The China Central Television building and the Central Business District area on a sunny day
The China Central Television building and the Central Business District area on a smoggy day
The Forbidden City
People visiting the Forbidden City on a sunny day. Photograph: Damir Sagolj/Reuters
People visiting the Forbidden City on a smoggy day. Photograph: Kim Kyung-Hoon/Reuters
Central Business District
Vehicles traveling past Central Business District on a sunny day. Photograph: Jason Lee/Reuters
Behicles traveling past Central Business District on a smoggy day. Photograph: Jason Lee/Reuters
Mao Zedong's Portrait on Tiananmen Gate
The giant portrait of Chinese late chairman Mao Zedong on the Tiananmen gate on a sunny day. Photograph: Damir Sagolj/Reuters
The giant portrait of Chinese late chairman Mao Zedong on the Tiananmen gate on a smoggy day. Photograph: Kim Kyung-Hoon/Reuters
National Stadium
People visiting the National Stadium, or the Bird's Nest, on a sunny day. Photograph: Jason Lee/Reuters
People visiting the National Stadium, or the Bird's Nest, on a smoggy day. Photograph: Kim Kyung-Hoon/Reuters
Tiananmen Square
Visitors standing next to a paramilitary policeman as they visit the Tiananmen Square on a sunny day. Photograph: Damir Sagolj/Reuters
Visitors standing next to a paramilitary policeman as they visit the Tiananmen Square on a smoggy day. Photograph: Damir Sagolj/Reuters
Tiananmen Gate
Visitors posing for photographs in front of the Tiananmen Gate and the giant portrait of Chinese late Chairman Mao Zedong on a sunny day. Photograph: Damir Sagolj/Reuters
visitors posing for photographs in front of the Tiananmen Gate and the giant portrait of Chinese late Chairman Mao Zedong on a smoggy day. Photograph: Damir Sagolj/Reuters
China Central Radio and Television Tower
A visitor using binoculars to see the city of Beijing at a viewing deck on the China Central Radio and Television Tower on a sunny day. Photograph: Jason Lee/Reuters
A visitor using binoculars to see the city of Beijing at a viewing deck on the China Central Radio and Television Tower on a smoggy day. Photograph: Kim Kyung-Hoon/Reuters
Jingshan Park
Visitors taking pictures at the top of the Jingshan Park overseeing the Forbidden City on a sunny day. Photograph: Damir Sagolj/Reuters
Visitors taking pictures at the top of the Jingshan Park overseeing the Forbidden City on a smoggy day. Photograph: Damir Sagolj/Reuters