This building was formerly called the Millenium Dome. It is huge. I understand it can be seen from space. It now host concerts and events on a massive scale.
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facts...
The O2 has an overall diameter of 365 metres, an internal diameter of 320 metres, a circumference of a kilometre and is 50 metres high at its central point
The twelve steel masts are 100 metres high
If you turned The O2 upside down, it would take Niagara Falls 15 minutes to fill it.
Alternatively, you could fill it with 3.8 billion pints of beer or the contents of 1100 olympic-sized swimming pools.
The volume of The O2 is equal to thirteen Albert Halls ten St Paul’s Cathedrals or two old Wembley Stadiums.
18,000 double-decker buses could fit into The O2.
The O2 is as high as Nelson’s Column,
The Eiffel Tower could fit inside The O2 lying on its side.
12 football pitches or 72 tennis courts could fit in The O2
n.b. Co-ordinates are to entrance