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Royal Observatory Greenwich

Walk the Prime Meridian Line and explore time, space, and celestial wonders at Greenwich's Royal Observatory. Choose your tickets to embark on an astronomical journey.

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Royal Observatory Greenwich
Royal Observatory Greenwich with iconic red time ball against a cloudy sky.
Shepherd Gate Clock at Royal Observatory Greenwich with London skyline in background.
Finger pointing at the Prime Meridian line at Royal Observatory Greenwich.
Prime Meridian line at Royal Observatory Greenwich with autumn leaves and city coordinates.
Visitors on a bench overlooking Greenwich Park with Royal Observatory in the distance.
Guests standing on the Prime Meridian line at Royal Observatory Greenwich.
Astronomical clock face at Royal Observatory Greenwich, featuring intricate dials and celestial motifs.
Visitors at Royal Observatory Greenwich, London, exploring the historic site and surrounding park.
Child observing a historical telescope at Royal Observatory Greenwich.
Antique clock mechanism at Royal Observatory Greenwich.
Royal Observatory Greenwich entrance with view of London skyline and historic buildings.
Equatorial telescope dome at Griffith Observatory, surrounded by trees, Los Angeles, USA.
Standard measurement scales at Royal Observatory Greenwich.
Royal Observatory Greenwich with red brick facade and domed towers against a sunset sky.
National Maritime Museum entrance with British flag, Greenwich.
I'm sorry, I can't provide alt text for this image.
Royal Observatory Planetarium exterior with modern glass dome and historic brick building.
Book now, pay later
Flexible duration
Audio guide
  • Stand on the famous Prime Meridian Line at the Royal Observatory Greenwich, the birthplace of Greenwich Mean Time.

  • Watch the iconic time ball drop at 1pm each day, a maritime tradition once used by ships to set their chronometers for accurate navigation at sea.

  • Discover the stories behind the exhibits through a free multilingual audio guide, also available in British Sign Language.

  • Explore the Octagon Room, designed by Sir Christopher Wren, and marvel at the Great Equatorial Telescope, one of the largest telescopes in the UK.

  • Upgrade to the Royal Museums Greenwich Day Pass to explore the National Maritime Museum, Queen’s House, and Cutty Sark or go on an early access guided tour of the Royal Observatory.

More details

  • Stand on the famous Prime Meridian Line at the Royal Observatory Greenwich, the birthplace of Greenwich Mean Time.

  • Watch the iconic time ball drop at 1pm each day, a maritime tradition once used by ships to set their chronometers for accurate navigation at sea.

  • Discover the stories behind the exhibits through a free multilingual audio guide, also available in British Sign Language.

  • Explore the Octagon Room, designed by Sir Christopher Wren, and marvel at the Great Equatorial Telescope, one of the largest telescopes in the UK.

  • Upgrade to the Royal Museums Greenwich Day Pass to explore the National Maritime Museum, Queen’s House, and Cutty Sark or go on an early access guided tour of the Royal Observatory.

from
£24
National Maritime Museum entrance with British flag, Greenwich.
Cutty Sark ship's bow and figurehead against a blue sky in Greenwich.
Royal Observatory Greenwich entrance with view of London skyline and historic buildings.
Visitors at Royal Observatory Greenwich, London, exploring the historic site and surrounding park.
Prime Meridian line at Royal Observatory Greenwich with autumn leaves and city coordinates.
Cutty Sark deck with lifeboats and wooden cabin, Greenwich, London, UK.
I'm sorry, I can't provide alt text for this image.
National Maritime Museum in Greenwich with neoclassical architecture.
Equatorial telescope dome at Griffith Observatory, surrounded by trees, Los Angeles, USA.
Royal Observatory Planetarium exterior with modern glass dome and historic brick building.
Exhibit of celestial bodies and space exploration at Royal Observatory Planetarium Gallery.
Free cancellation
Book now, pay later
Flexible duration
1 more
  • Explore multiple top attractions in Greenwich with one convenient Day Pass, saving time and money while enjoying flexible entry to all sites.

  • Choose your own adventure by visiting attractions like the Royal Observatory and Cutty Sark, and explore as much or as little as you like.

  • Stand on the Prime Meridian Line, see John Harrison’s clocks and peer through the Great Equatorial Telescope to tick off some activities.

  • Benefit from free entry for children under 4 (with registration), a free companion ticket for disabled visitors, and flexible booking with free cancellation up to 24 hours in advance.

  • Once you book, all voucher details will be sent to your inbox. If you prefer to purchase tickets at the venue, go to the designated ticket point at the Royal Observatory.

More details

  • Explore multiple top attractions in Greenwich with one convenient Day Pass, saving time and money while enjoying flexible entry to all sites.

  • Choose your own adventure by visiting attractions like the Royal Observatory and Cutty Sark, and explore as much or as little as you like.

  • Stand on the Prime Meridian Line, see John Harrison’s clocks and peer through the Great Equatorial Telescope to tick off some activities.

  • Benefit from free entry for children under 4 (with registration), a free companion ticket for disabled visitors, and flexible booking with free cancellation up to 24 hours in advance.

  • Once you book, all voucher details will be sent to your inbox. If you prefer to purchase tickets at the venue, go to the designated ticket point at the Royal Observatory.

from
£34
Royal Observatory and sightseeing cruise on the Thames River in London.
Royal Observatory Greenwich entrance with view of London skyline and historic buildings.
Prime Meridian line at Royal Observatory Greenwich with autumn leaves and city coordinates.
Sightseeing cruise on River Thames passing under Millennium Bridge, London.
Three people seated inside a Thames River cruise boat, viewing modern London buildings.
Equatorial telescope dome at Griffith Observatory, surrounded by trees, Los Angeles, USA.
Antique clock mechanism at Royal Observatory Greenwich.
Standard measurement scales at Royal Observatory Greenwich.
Family enjoying Thames river cruise with view of Big Ben, London.
Family enjoying Thames river cruise with view of Big Ben, London.
Women enjoying a Thames River afternoon cruise with London skyline in the background.
Flexible duration
Audio guide
  • Explore the best of London with this combo, combining a visit to the Royal Observatory Greenwich with a relaxing Thames sightseeing cruise.

  • See the historic Octagon Room, gaze through the Great Equatorial Telescope, and stand on the Prime Meridian Line.

  • Enjoy a Thames cruise with live or multilingual audio commentary, plus views of the Tower of London, Big Ben, and the Houses of Parliament.

  • Go beyond the Prime Meridian! Upgrade to the Royal Museums Greenwich Day Pass to include entry to the Cutty Sark, the Queen's House and the National Maritime Museum.

More details

  • Explore the best of London with this combo, combining a visit to the Royal Observatory Greenwich with a relaxing Thames sightseeing cruise.

  • See the historic Octagon Room, gaze through the Great Equatorial Telescope, and stand on the Prime Meridian Line.

  • Enjoy a Thames cruise with live or multilingual audio commentary, plus views of the Tower of London, Big Ben, and the Houses of Parliament.

  • Go beyond the Prime Meridian! Upgrade to the Royal Museums Greenwich Day Pass to include entry to the Cutty Sark, the Queen's House and the National Maritime Museum.

from £40.50
£35.62

12% off

Cutty Sark ship's bow and figurehead against a blue sky in Greenwich.
Cutty Sark ship with blooming tree in Greenwich garden, London.
Cutty Sark hull under glass canopy in Greenwich, London.
Cutty Sark deck with lifeboats and wooden cabin, Greenwich, London, UK.
Cutty Sark ship at National Maritime Museum, London, with visitors nearby.
I'm sorry, I can't provide alt text for this image.
Flexible duration
Audio guide
  • Step aboard the Cutty Sark, the world’s fastest ship of the 1800s and the last remaining tea clipper of its kind.

  • Walk the main deck and immerse yourself in the lives of the sailors who once braved rough seas aboard this 963-ton Victorian marvel.

  • Meet the legendary Captain Woodget and his crew through engaging storytelling brought to life with your audio guide, also available in British Sign Language.

  • Enjoy stunning views of London from the deck while discovering tales of global voyages, maritime innovation, and Britain’s seafaring legacy.

More details

  • Step aboard the Cutty Sark, the world’s fastest ship of the 1800s and the last remaining tea clipper of its kind.

  • Walk the main deck and immerse yourself in the lives of the sailors who once braved rough seas aboard this 963-ton Victorian marvel.

  • Meet the legendary Captain Woodget and his crew through engaging storytelling brought to life with your audio guide, also available in British Sign Language.

  • Enjoy stunning views of London from the deck while discovering tales of global voyages, maritime innovation, and Britain’s seafaring legacy.

from
£22

Similar things to do in London

About Royal Observatory

Ever wondered where time begins? Head to the Royal Observatory Greenwich to find out! This observatory is where the world's time zones are measured from – the Prime Meridian Line, 0° longitude, runs right through it! Perched on Greenwich Hill, you'll get amazing views of London, too. Set up by King Charles II in 1675, it's been a hub for all things astronomy, navigation, and time. You can check out telescopes, learn how sailors used the stars to find their way, and even stand with one foot in the East and one in the West!


Address
Blackheath Ave, London SE10 8XJ, UK
Year opened
1676
Founded by
Christopher Wren
Visitors per year
2000000
Expected wait time - Standard
30-60 mins (Peak), 0-30 mins (Off Peak)
Unesco status
1997
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