6. McKenzie River Trail, Oregon. Voted the number 1 trail in America, the McKenzie River Trail runs through a mountainous old growth forest. The surrounding scenery features many waterfalls and a disappearing river.

7. Santos Bike Trails East, Florida. The Santos Bike Trails, East run through a portion of the Cross Florida Greenway. The 80-miles of trails feature three levels of difficulty and encompass a variety of natural habitats.