Old Faithful, named by members of the 1870 Washburn Expedition, was once called “Eternity’s Timepiece” because of the regularity of its eruptions. Despite the myth, this geyser has never erupted at exact hourly intervals, nor is it the largest or most regular geyser in Yellowstone National Park.
United States - Wyoming 
Canada - Ontario - Niagara Falls
Brazil - SP - Guarulhos
Italy - Manarola - Cinque Terre