Visitors to the world-famous Meridian Line at the Royal Observatory in Greenwich, south-east London, are to be charged for the first time in 10 years. Entrance to the building's courtyard ...

It was late afternoon on Monday as I stood on the Greenwich Mean Time prime meridian line in the verdant patch of London that gives it its name. I surveyed the park bathed in golden sunlight below ...

There are 24 time zones. There is an imaginary line running through the UK called the Prime Meridian. It runs through a place in London called Greenwich. The Prime Meridian splits the world into ...