1. New England's autumn foliage
The display of autumn colour is always brief but the East Coast's is billed as one of the greatest shows on Earth. With its white church steeples and colonial homes, New England is reputed to be the best place to catch it. The dramatic changes of colour begin in the northern New England states (Maine, Vermont, New Hampshire) in late September, and in late October in the southern New England states (Connecticut, Massachusetts Rhode Island). See the Discover New England website for suggestions of foliage maps and drives, and autumn food festivals.
Niagara Falls is made up of three waterfalls, the Horseshoe, the American and the Bridal Veil, straddling the US-Canada (New York state and Ontario) border. The American and the smaller Bridal Veil Falls are on the US side. These combined falls form the world's highest flow rate of any waterfall, with a drop of more than 50m.