It is indeed quite magnificent. Besides just seeing the falls you can do the maid of the mist, journey behind the falls, take a helicopter tour over the falls and do ziplining over it as well. Although there is way more to do if you go to to the Canadian side of the falls. They have a strip called Clifton Hill with tons of cool shops, museums, arcades, restaurants. It's so much fun.
https://www.cliftonhill.com/niagara-falls-attractions