The Sydney Harbour Bridge and Sydney Opera House can be seen during a dust storm as it descends on the city of Sydney in Australia, on November 22, 2018. (Photo by Reuters)

Cambodian participants row their dragon boats as doves fly over during the Water Festival in Phnom Penh, Cambodia, on November 21, 2018. (Photo by AFP)

A signpost indicating hiking trails is covered in snow in Sankt Andreasberg near Braunlage, central Germany, on November 20, 2018. (Photo by AFP)

A view of a frozen pond in a forest outside Moscow, Russia, on November 20, 2018 (photo by AFP)

Impalas walk near the elevated railway that allows movement of animals below the tracks at the construction site of Standard Gauge Railway (SGR) in Nairobi National Park, Kenya, on November 21, 2018. (Photo by AFP)

An award-winning llama is seen at the World’s Camelids Convention in Oruro, Bolivia, on November 21, 2018. (Photo by Reuters)   

Light displays are pictured during a photocall at Kew Gardens in southwest London, on November 21, 2018. (Photo by AFP)

A Pakistani Muslim prays at an illuminated mosque in connection with Eid-e-Milad-un-Nabi, the birthday of Prophet Mohammad (PBUH), in Karachi, Pakistan, on November 20, 2018. (Photo by AFP)