Photo taken on Dec. 17, 2016 shows the House of Parliament in fog in central London, Britain. (Xinhua/Han Yan)
Two man walk along the River Thames in fog in central London, Britain, on Dec. 17, 2016. (Xinhua/Han Yan)
A bus passes by the "London Eye" in fog in central London, Britain, on Dec. 17, 2016. (Xinhua/Han Yan)
A woman walks past by the "London Eye" in fog in central London, Britain, on Dec. 17, 2016. (Xinhua/Han Yan)
