Visit the royal observatory greenwich to stand on the historic prime meridian of the world see the home of greenwich mean time gmt and experience londons only . The royal observatory greenwich rog known as the old royal observatory from 1957 to 1998 when the working royal greenwich observatory rgo moved from greenwich . This content has been supplied by royal observatory greenwich prices and opening times child admission to the royal observatory includes an audio guide. Fully revised this official guidebook to the royal observatory greenwich details the home of time that has been at the heart of nautical astronomy since the late . More information about the royal observatory greenwich tickets admission to royal observatory guide a space mission and unravel the mysteries of the
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