Think about it: the UK has a subway that was built before the telephone was invented. That’s mind-blowing. And then we have a tiny loop in Glasgow that takes as long to ride as it does to bake a frozen pizza.
Here’s a fun comparison: London’s Tube moves over 1 billion people every year. That’s like the entire population of Europe hopping on a train! Meanwhile, the Glasgow Subway moves about 13 million people—still impressive, but more like a busy city’s bus network.
Printable London Subway Map
So, the final tally? If we’re strict about “true” underground subways, the UK has four. If we’re generous and include light rails with some underground sections, we get to about eight. But the real answer is: it depends on how you define a subway.
