Imagine this.

The oldest rapid transit system in the world. 11 lines, 268 stations. 400 km (250 miles) of track. Over one billion passenger journeys per year. 55% above ground.

The Tube. Not known by any other name.

Here’s a train on the Hammersmith & City line at Barbican station, taken on a Saturday morning. The whole Circle Line was closed that day, together with a huge chunk of the Metropolitan from Wembley Park and a smattering of odd stations. I mean, give it a break, it’s almost 150 years old.