Sometimes, we just need a different vantage point, like the kind that comes with a visit to the highest observation decks in the USA. According to the Council on Tall Buildings and Urban Habitat, North America started the phenomenon of building observation platforms to drive building revenue and allow visitors to see the surroundings from a new, sometimes vertigo-inducing, perspective.

　　But it's not justskyscrapersthat offer the most enviable views of America: Natural wonders like the Grand Canyon and Niagara Falls have them, too. Whether atop a tall building or in nature, many of the most impressive observation decks you'll see today have also added unique features like glass ledges, revolving floors, and amusement rides to enhance an already exhilarating experience.

　　Ready to face your fears? From glass floors and open-air skywalks to perches that look out into several states, soar to new heights atthe coolest observation decks in America.

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