The O2 Arena is a venue located in London, England, it hosts many different sport, comedy and entertainment events all year round. Bit if left behind by people how long can the O2 last for?
1 day after people: The O2 Arena blacks out as the power fails in London.
20 years after people: Most of the glass panels have fallen out of the domes skin.
150 years after people: The dome finally caves in and the O2 Arena is no more.