From a tornado looming above Colorado to an orangutan using a leaf as an umbrella: National Geographic reveals its top pictures of 2015 (2)

Joel Nsadha. Bwengye lives in a slum called Kamwokya in Kampala, Uganda's capital city. He cherishes his bicycle more than anything else. He brings it to this playground in the slum every evening where he watches kits playing soccer

The contest accepted submissions from the magazine's photography community, Your Shot, across three categories: People, Places, and Nature.

First place in the People category was awarded to Joel Nsadha of Binghamton, New York.

In this photograph, called 'At the Playground,' a young man in a Ugandan slum sits on his most cherished possession, his bicycle.

In the Places category, Francisco Mingorance's 'Asteroid,' was chosen as the winner. The photographer, from Andalusia, Spain, captured a marsh in Spain that has been partially destroyed by radioactive waste.