 The Rainbow Bridge, just downriver from the falls, affords the closest view of the falls and is open to non-commercial vehicle traffic and pedestrians.The Whirlpool Rapids Bridge lies north of the Rainbow Bridge and is the oldest bridge over the Niagara River.Nearby Niagara Falls International Airport and Buffalo Niagara International Airport were named after the waterfall, as were Niagara University, countless local businesses, and even an asteroid.