The O2

The O2 is the world' biggest dome in south-east London. Old name is Millennium Dome. This dome is going to used as a venue of World Gymnastics Championships in 2009 and of London Olympic in 2012. This dome was built in 2000, but it closed beacause there are a lot of problems to hold exhibit. After that, it reopened in 2005. Construction of this dome is very strange. 12 masts Which is on the roof is symbolic of function of Greenwich Mean Time.

Royal Greenwich Observatory

There are several famous building in Greenwich park. That is Royal Greenwich Observatory and National Maritime Museum. Royal Greenwich Observatory was commisioned in 1675byu king Charles II. There is Shepherd gate clock on wall outside the gate of Royal Greenwich Observatory. Shephered gate clock is 24-hour clock.