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Royal Observatory, Greenwich

The Royal Observatory Greenwich, located in London, England, is a historic site famous for its contributions to astronomy and navigation. Established in 1675, it played a key role in determining the Prime Meridian, which is the starting point for measuring longitude worldwide. The observatory houses the iconic Greenwich Mean Time (GMT) and features several important telescopes and exhibits on the history of timekeeping and navigation. Today, it is part of the National Maritime Museum and attracts visitors interested in astronomy, history, and the science of time.

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  • Image for Royal Observatory, Greenwich

    The Royal Observatory, Greenwich, located in London, was established in 1675 and is famous for its historical significance in astronomy and navigation. It is home to the Prime Meridian, which defines the 0° longitude line used for global timekeeping. The observatory played a vital role in advancing our understanding of time and space, enabling mariners to navigate accurately. Today, it houses a museum that showcases astronomical instruments, historical artifacts, and exhibits about the stars and timekeeping. The site is also part of the UNESCO World Heritage Site of Greenwich, recognized for its cultural and scientific contributions.