Arlington, Massachusetts!
The Minuteman Bike Trail
Its a long paved narrow thing. That's it. You ride your bike on it. There is absolutely nothing at either end. I don't even know if it does end. I do know that for some reason 1,000,000 people use it per year. Maybe if you make it to the end you enter some kind of passageway to the afterlife. But your on your bike, which is good because I don't think there are bikes in heaven.