Traveller's cheques and credit cards (American Express, Visa, Mastercard) are exchanged for Vietnamese dong at the banks. Cards can be used in travel agencies, hotels, and major restaurants. US currency is exchanged for Vietnamese dong and treasury notes in banks, exchange bureaus, hotels, and jewellery shops.
Nikola Tesla designed the first hydroelectric power plant at Niagara Falls, New York which started producing electrical power in 1895. This was the beginning of the electrification of the United States and the rest of the world. Today, Teslaâs AC electricity is lighting and powering the globe.
Niagara Falls International Airport opened in 1928 as a municipal airport with four crushed-stone runways. During World War II, Bell Aircraft established a large manufacturing plant next to the airport, where during the war it built over 10,000 P-39 Airacobras and P-63 Kingcobras. Bell employed over 28,000 at the plant.