If you want to see London in all its glory, then you have to climb up high. A favoured vantage point is on the hill above Greenwich, home of the world-famous observatory. And that’s exactly what it is. A place to see a grand sweep of the city and a large bend in the River Thames, from the mighty Shard to the City. The bristling of Docklands’ corporate skyscrapers is just across the way. And if you’re blessed with a crystal blue sky, then all the better.