The CBRE Urban Photographer of the Year competition – now in its ninth year – encourages professional and amateur photographers to capture cities at work. Here: Blizzard Days. For the first time, the 2015 competition included a mobile category. The winner, Cocu Liu from China, captured the Chicago Board of Trading Building. (Photo by Cocu Liu)





Poultry Prepared for Market. The Asia Pacific prize went to Peter Graney for this photograph taken in Phnom Penh, Cambodia. (Photo by Peter Graney)





Winter Work. Christopher Martin was the winner of the Americas prize for this image of a plane being de-iced at Calgary International Airport, Canada. (Photo by Christopher J. Martin)





Xyclops. Oscar Rialubin from the Philippines was named overall winner of the CBRE Urban Photographer of the Year with his image of a watch repairman at work in Doha, Qatar. (Photo by Oscar Rialubin)





Managing Influence – 00:00. The competition allows photographers to enter up to 24 images, one representing each hour of the day. (Photo by Pedro Guimarães Lins Machado)





General Compartment – 02:00. (Photo by Sujan Sarkar)





Crossroads – 04:00. (Photo by Joshua Charow)





Construction On Call – 10:00. (Photo by Geoff Williams)





Workers – 13:00. (Photo by SHM Mushfiqul Alam)





Human Museum – 14:00. (Photo by Jorge Maluf Ferreira)





Dog Walker – 15:00. (Photo by Johanna Siegmann)





In Between Work – 16:00. (Photo by Ankit Narang)





Digital Age Vol 2 – 22:00. (Photo by Martin Faltejsek)





Oriental Fast Food – 23:00. (Photo by Marcos Sobral)