The 2022 Beijing Winter Olympics will be spread over three distinct zones and merge new venues with existing ones from the 2008 Games, including the Bird's Nest stadium.

With 100 days to go, AFP Sport takes an in-depth look at where the Olympics will take place:

Beijing - The 80,000-seater Bird's Nest National Stadium -- whose cross-hatched steel girders produce a nest-like appearance -- will stage the opening and closing ceremony.

sting Olympic Park is a 12,000-capacity speed skating oval nicknamed the Ice Ribbon.

New venues have been built in other parts of the city, such as the striking location for some of the skiing and snowboarding events.

The 60-metre-high Big Air jumping platform stands in the shadow of four vast cooling towers at a former steel mill that once employed tens of thousands of workers and is now a trendy bar, restaurant and office complex.