It's dark, the platform is cramped, everyone is sweaty and you don't have cell service. For many of us, subway systems don't exactly sound like the most exciting tourist destination.
Nonetheless, thousands of users on networks like Yelp and TripAdvisor log on to rate and review the pros and cons of the world's metros every day. Their findings will at once disturb, humor and guide you during your next public transportation journey.
Looking at 10 of the world's largest and most well-known systems, it becomes clear that traveling communities cannot agree whether certain subways are the saving grace or utter downfall of their host city. The reviews serve as a reminder that everything has its ups and downs, and sometimes those downs involve "permanent crap stains" and rats the size of small dogs.
Check out our interactive map below and see if you agree with the public transportation enthusiasts of the Internet.