Have you ever wondered which European cities have the best, worst and busiest metro networks? New research reveals the answers. Luggage storage company Bounce has looked into all of the services ...

Oslo's underground rail service has been ranked the best in Europe. Even Norway's Crown Prince Haakon and Denmark's Queen Mary (left) recently rode it on their way to a hike. Lise Aaserud/NTB/dpa ...

There's no doubt that one of the best ways to get around Europe for sightseeing (or just commuting in general) is by way of each city's metro system. Even travel writer, Rick Steves, says so. And, if ...