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 consists of two waterfalls on the Niagara River, which marks the border between New York and Ontario, Canada: the American Falls, located on the American side of the border, and the Canadian or Horseshoe Falls located on the Canadian side.he brink of the falls is approximately 2,500 feet from one side to the other. The American Falls are 180 feet high and 1,100 feet long. The river below Niagara Falls averages 170 feet deep. Daredevils who go over the falls usually hit the bottom of the river before popping back to the surface.