Addition to what others have said, it's also therapeutic. Like exploring new places, the feeling/sounds. It's not detached from the environment, like it is in the car, nor it is too loud like it is on the motorbikes. It's not too fast, nor to slow to enjoy the surroundings. And, the sound of the hubs, wheels can feel peaceful even.

In my case, my city is disgustingly depressing. But after I started riding, I realized the city had so much greenery around it. And no car or motorbike could access it. Riding down the village roads, between the trees, that you can not access by a motor vehicle, or walking, is an amazing experience. And, it does not damage the environment, nor ruins the peace with loud noise.