Stunning location with incredible views over London. If you want to stand on the Meridian line you can avoid the entry fee by heading to the marker under the courtyard to the right of the entrance.

The home of Greenwich Mean Time (GMT) and the Prime Meridian . This marks the official starting point for each day, year and millennium and divides the East and West Hemispheres of the earth. Read more

Small museum with a few cool interactive exhibits that will make you feel like a kid for the day. Don't miss the Prime Meridian and the view of Greenwich nearby! http://bit.ly/1rc4wFw

Shame that's it's now pay, after many years of being free. The view from the hill , once you've managed the steep climb to the top via the paved walkway, is stunning. I look out now and wonder that w

Very interesting exhibits about the early days of astronomy. Check out Yuri Gagarin's statue .

You can straddle the Prime Meridian for free - The demarcation is also available OUTSIDE the main gate along the wall that runs underneath the Prime Meridian Sculpture on the museum grounds.

It's a hike to get up to the Observatory from the National Maritime Museum , so make sure you leave some time for the walk. Also, look into wheelchairs for anyone with mobility issues.

Great museum about the relationship between navigation and time instruments with great artifacts and the prime meridian !

If you just want to stand across the meridian, outside of the fenced area that costs to enter it's marked on the ground . On the N side of the Observatory (towards the river ) through the black gates.

Not worth the price. Very small, Audio guide is very dry, Exhibits aren't very interesting. The meridian line was also swamped with people. Some nice views but they are also available from outside.

One of my favourite places in London. The gardens are lovely and the visits to the main buildings are a must-do from time to time.

Lovely buildings, peaceful surroundings and an informative museum . Well worth the entry.

A must see for any visitor. Follow the meridian line , marked in gleaming brass in the pathway up to the observatory and contemplate the Earth's rotation and the meaning of time Read more

Ticket does not include the planetarium show, book that ahead of time.

Really interesting museum about how we struggled to measure time and distances accurately throughout history

Great show for the kids(Space safari).

Set in a stunning park , and sitting precisely on the Prime Meridian of the world, the Royal Observatory is a great way to spend an afternoon in South London.

Don't miss out the true +0GTM at the Prime Meridian !

Worth a see but too many people here. Except the prime meridian there are more to see of the development of astronomical science in this building.

Best view of London . Highly recommended. Don't miss the prime meridian .

The home of Greenwich Mean Time, and therefore where each day and year commences. The Observatory’s original function was to improve sea navigation through knowledge of astronomy.

Great views from the top and interesting exhibitions . Some free to enter.

The starting point for global time. Free museum . Stand on the prime meridian , one foot in the western hemisphere one foot in the east. Also unquestionably the best view across London

Absolutely fabulous 'surprise trip' for the missus if you're in the part of town . Book a show in advance. Cheap and mind blowing.

Well worth the visit. John Harrison's prototypes & the winning H4 chronometers are awesome to see!! Inspiring story!! :)

Amazing views of London . Not quite as good as 'One Tree Hill ' which is elsewhere in Greenwich Park

It's a reaLy small museum , bad to me was the fact that many galleries were on maintenance... The best for me was the "0 meridian line "

standing right on the meridian line ! ???? woot! woot!

Excellent views of London City . Wonderful place to catch Sunrise & Sunset

Good photo op, excellent views

Well worth a visit. Fascinating story of the importance of timekeeping for navigation. The phrase “On the ball” has its routes here.

Just £7 entrance for fascinating exhibitions on time, longitude and chance to stand on meridian line :-)

Great place to go in fab surroundings and one of the best views anywhere in London.

Be prepared to hike up a steep hill , but the view is rewarding.

On a nice day, watch the sun set over London from the top of the hill — stunning.

Stand on the Worlds Famous Meridian Line

Worth a visit. Owner Paul is very helpful.

£4.80 for parking via blackheath entrance for 4hours maximum stay

they blocked off one of the footpaths for no reason

Most overpriced museum in London.

Beautiful views of Canary Wharf

Astronomy Photographer of the Year 10 am - 5pm

Best views of London

A must see.

There is a fab comedy photo opportunity at reception near the meteorite...

Expensive for what It has inside but necessary to see the meridian!

very good evening with the stars tour , even in the rain!!

the place where time begins

Very informative

GMT zero！Prime meridian of the world!