When traveling to the United States, I want to drive from Washington to Niagara Falls, then to Boston, and finally back to New York

You can find it on Google Maps.

The trip from Washington to the Falls is about 400 miles, more than 7 hours, and it is all mountainous. If you go in mid-October, the mountains will be covered with beautiful red leaves.

The distance from Waterfall to Boston is slightly longer, but the road is easier to walk, so the driving time is about the same.