Where do they bike the most?

I'm curious to know, in what locations do people tend to engage in cycling activities the most? Are there specific regions, cities, or even neighborhoods that are renowned for their bike-friendly infrastructure and culture? Perhaps there are popular bike trails or routes that attract cyclists from all over, or areas where cycling has become a beloved pastime among locals. I'm eager to learn more about where these cycling hotspots are located and what makes them so appealing to riders.