If you have time, and a passport, you should check out the Canadian side of Niagara Falls. It’s so much nicer than the American side, and an easy 1/2 hour ride from downtown Buffalo.
It’s loaded with fun “touristy” stuff, restaurants, museums, beautiful gardens and more. Everything is close by and near the Rainbow Bridge. You can park on the American side and walk over the Rainbow Bridge right into the heart of the area.
https://www.niagarafallstourism.com/