What is the number one cycling city in the world?

As a cryptocurrency and finance professional, one might not typically delve into the realm of cycling cities. However, if we were to adopt a curious mind and pose a question regarding this matter, it might sound something like this: "I'm often fascinated by how diverse topics intersect in today's world. And so, I'm left wondering - which city in the world holds the title of being the number one cycling city? Is it a bustling metropolis where cyclists outnumber cars on the roads? Or perhaps a serene town where the bike is the primary mode of transportation? This question piques my interest not just as a lover of cycling but also as a student of urban planning and sustainability. Surely, there's a city out there that stands out for its cycling culture and infrastructure. I'd love to learn more about it.