Bring a camera to capture the spectacular cascades of American Falls. If it's raging, you may be able to feel the mist on your skin.
You'll be spoiled for sightseeing choice when in Niagara Falls. American Falls is an ideal place to start here, but there are many other worthy spots to enjoy. Horseshoe Falls, Niagara Falls State Park, and Bridal Veil Falls are near the cascade of water and will fill in your day nicely.