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.
In geological time, Niagara Falls is quite young. The formation of the falls began at the end of the Ice Age. Large torrents of water were released from the melting ice, draining into what is now the Niagara River.Some 12,000 years ago, the water plunged over the edge of the Niagara Escarpment, a cliff at what is now Lewiston, New York.The force of the water wore away the rock layers and Niagara Falls moved upstream, eventually reaching its present location. Learn more about the formation, geology and history of Niagara Falls.n geological time, Niagara Falls is quite young. The formation of the falls began at the end of the Ice Age. Large torrents of water were released from the melting ice, draining into what is now the Niagara River.