Greenwich , centre of time.

On Saturday 16th December I took my young lion cubs south of the river Thames to visit Greenwich, its one of my favourite parts of Englands capital, it has a strong naval heritage and is home to the Royal Navy college, along with it's fine museum also the famous wool and tea clipper known to all Englishman from my generation and older as the Cutty Sark. It's the fastest tea clipper ever built and defines the age of sail.
Greenwich is a great place for a day out, fine pubs and restraunts, a great market and a walk along the Thames, not to mention the Cutty sark and navy Museum, but one place you must go is on the hill overlooking Greenwich, it's called the Royal Observatory. From this point you can take in a magnificent view of London as the picture above shows. Also at the observatory is the greenwich meridian Line.
What is the Meridian Line?
The Meridian Line is an imaginary line which runs from the North Pole to the South Pole. By international convention it runs through "the primary transit" instrument (main telescope) at the Royal Observatory in Greenwich. It is known at Zero Longitude and it is the line from which all other lines of longitude are measured. This includes the line that runs 180° away from Greenwich also known as the International Date Line.
In the other picture above you can see my young cubs standing on the Meridian line, on one side it's the east and on the other side it's west , they are standing at 0' longitude , the centre of time. If your visiting London, why not sail down the Thames to Greenwich , do a spot of retail therapy at the market followed by a nice pub lunch and then walk up the hill to visit the Observatory, taking in the view and standing at 0' longitude.