Royal Observatory and Prime Meridian
About this experience
Step into a world where time begins at the Prime Meridian, located at the Royal Observatory in London. This captivating museum invites you to explore the fascinating history of astronomy and navigation. As you wander through its historic halls, you'll be greeted by the UK's largest historic telescope, a marvel that has witnessed countless celestial events. The observatory not only offers a glimpse into the past but also provides stunning views across the River Thames and the lush expanse of Greenwich Royal Park.
Your journey at the Royal Observatory is more than just a visit; it's an exploration of the very foundations of timekeeping. Here, you can stand on the world-famous Meridian Line, where east meets west, and discover how Greenwich Mean Time has influenced global time zones. Whether you're a history buff, a science enthusiast, or simply looking for a unique experience in London, the Royal Observatory promises an unforgettable adventure.
What to expect
When you visit the Royal Observatory, you'll embark on a journey through time and space. Start by standing on the Prime Meridian Line, where you can snap a memorable photo straddling two hemispheres. Then, delve into the world of astronomy with engaging exhibits that bring the wonders of the universe closer to you.
As you explore, don't miss the chance to look through the historic telescope, which offers a unique perspective on celestial bodies. The observatory's location also allows you to enjoy stunning views of the surrounding area, making it a perfect spot for both learning and relaxation amidst the beauty of Greenwich.
Highlights
- Stand on the iconic Prime Meridian Line
- Gaze through the UK's largest historic telescope
- Enjoy breathtaking views of the River Thames
- Explore the fascinating history of timekeeping
- Discover interactive exhibits and displays
- Stroll through the beautiful Greenwich Royal Park
- Learn about the stars and navigation
Things to note
- Book your tickets in advance to avoid long queues.
- Check the opening hours before your visit, as they may vary.
- Wear comfortable shoes for exploring the grounds.
- Consider joining a guided tour for a deeper understanding of the exhibits.
- Bring a camera to capture the stunning views and memorable moments.
Location
Get directionsWhat visitors think
6,463 reviews
Reviews from Google
Frequently asked questions
The entrance ticket grants you access to the Royal Observatory, where you can explore the iconic Prime Meridian and view the UK's largest historic telescope.
Book This Experience
Entrance ticket
Choose your date
May 2026
Passengers
$25.20 each
$13.45 each
$10.15 each
About this ticket
The Royal Observatory is home to the world-famous Meridian Line and Greenwich Mean Time (GMT). Established in the 17th century by Charles II, it is today a unique visitor attraction and a must-see for any visit to London.Marvel at the Great Equatorial Telescope, the UK's largest, historic telescope which gave astronomers new views of the universe over 100 years ago. You'll also enjoy one of the most-loved views of London across Greenwich Royal Park and the River Thames.Don't forget to take a selfie on the iconic Meridian Line with one foot in the west and one foot in the east!
The Royal Observatory is home to the world-famous Meridian Line and Greenwich Mean Time (GMT).
Choose your date
May 2026
Passengers
$25.20 each
$13.45 each
$10.15 each



