Standing tall among popular US vacation spots is Niagara Falls in New York State.
Riding the U.S-Canada border, the Niagara Falls have been a mecca for tourists since well back into the middle of the 19th century.
The thundering mass of water can be viewed from observation towers on both the American and Canadian sides, via boat from the area below, and from a number of hiking trails that surround the falls.
In addition, visitors who make the trek to the Canadian side are able to inspect the waterfalls from an antique cable car known as the Whirlpool Aero Car.
Each year about 12 million people make the journey to Niagara Falls, making the site a perpetually high ranking fixture on the US tourism circuit.
Maintaining the natural beauty and wonder of the falls has been a constant challenge for both the US and Canadian governments, partly because of companies constructing buildings nearby but also due to erosion from all the visitors the site receives.
There is a fantastic side history to the Niagara Falls, because many people have attempted stunts such as going over the falls in barrels or crossing on a tightrope.