Tennessee has the most waterfalls in the United States, with over 850. The state also has over 100 caves, making it a great destination for exploring the natural beauty of the United States.
Other states with a large number of waterfalls include Washington (over 750), Oregon (over 500), and North Carolina (over 300). While other states with a large number of caves include Kentucky (over 100), Missouri (over 90), and Alabama (over 80).