50. Louisville Riverwalk
Location: Louisville, Ky.
Distance: 8 miles
Best Suited For: All bike types
Sure, eight miles is pretty short for a paved trail, and yes it's called a river walk, as opposed to river bike, but it's a great way to decompress after hitting the hustle and bustle of Louisville. You'll get to check out the Ohio River, coal barges, and finish up in downtown Louisville, where you can pick up some fine bourbon.