Transwikied from http://lifeafterpeople.wikia.com/wiki/User_blog:Whipsnade/The_O2
The O2 is a dome theatre/stadium in London, UK. It looks like a dome with poles sticking out of it. How long can this unusual structure last?
1 year: The first wire begins to bend, and a pole leans 2 degrees.
10 years: The Thames batters the soil, and the peninsula landslides slowly, and the first pole falls down damaging the dome and other poles/wires.
25 years: O2's poles are wires all fell down, but the dome is only 20-30% destroyed. The dome remains as the peninsula slides into the Thames.
45 Years: The Greenwich Peninsular becomes a bog once more.
100 years: The rusty dome finally collapses.