Officially named the London Orbital, nicknamed the 'Road to Hell', and frequently derided as nothing more than a very big car park, this is the world famous and rightly notorious M25.
The wait is over! The full map of the Ringways, London’s unbuilt urban motorway network, is now online. Not even the system's planners had anything like this.
If you've ever been on the M62 across the Pennines, you'll know the one. It's the huge arched bridge 120ft above the road. And this is what it's like when you're standing on top of it!