Since 2010, the train network in Denmark (S-Train) allows cyclists to bring their bikes on the train, for free. Now this would probably be considered insane this side of the world, but the idea is a “a growing success”, and they’re trying to make it even better. S-Train is remodeling 10 trains to accommodate twice as many bikes.
Built in 1869 by the East London Railway Company, which reused the Thames Tunnel intended for horse-drawn carriages, the line became part of the London Underground network in 1933. Description from snipview.com. I searched for this on bing.com/images