As the London Olympics draw closer, questions have arisen about the future of the venues, with Beijing's 2008 Games a key indicator. The "Bird's Nest", or Beijing National Stadium, was the iconic venue and is still actively used for international sports tournaments.

This is the venue in Beijing that hosted water events during the 2008 Games...

... but this is the same venue now. A sign for a men's changing room lies abandoned by a jetty on the rowing course.

Kayaking events had taken place here. Now, with its water pumped out, the concrete cavity lies empty and dry.

A rusting logo for rowing on the gate outside the water course.

This is the Wukesong baseball field in Beijing during a game at the 2008 Olympics...

...photographed in April this year, a stray dog rests on a slab of glass nestled between overgrown weeds and shrubs in the grounds of the same field.

Beach volleyball matches were held inside this stadium, which is now covered in torn posters and murals.