Get ready to consider a move to Central London as a recent study by rental company Essential Living has found it the friendliest place for dog travel.
A paw-fect study
A study was carried out on 10 underground lines across the globe. The company assessed a dog-friendly range of criteria including areas where pets are allowed and whether muzzles are mandatory.
And top of the pups? The London Underground!
The least friendly cities included Beijing and Mexico City, where pups can't travel on the subway system at all.
First-class travel for dogs?
Despite London's superstar status, it still isn't quite luxury travel for pampered pooches.
For their own safety, dogs must be kept on a short lead at all times and, with the exception of service dogs, must be carried up escalators to prevent their claws from getting caught - which is fine for Chihuahuas but far less practical for Great Danes!
Travel is completely free across the London travel network for pets but if you are taking your Bullmastiff across the city, it might be an idea to plan ahead first.
The Blue Cross website has a handy Dog-friendly tube map to help you find all of the stations that have stairs or lifts.