The Royal Borough of Greenwich is located in southeast London, England. It is known for its rich maritime history and is home to the famous Greenwich Mean Time (GMT), which serves as the basis for timekeeping worldwide. The area features several historic sites, including the Royal Observatory and the Cutty Sark, a renowned tea clipper ship. Greenwich is also recognized for its beautiful parks and gardens, such as Greenwich Park, which offers stunning views of the River Thames and the London skyline. The borough is part of the Royal Boroughs of London, reflecting its royal heritage and significance in British history.