There are plenty of reasons why Yellowstone tops this list. It is certainly a national park of superlatives. It has the biggest public herd of bison in the United States, and one of the best examples of North American wildlife in the country. There are threatened lynx, grey wolves, grizzly bears and mountain lions to spot. The park also suffers thousands of earthquakes year round that constantly change the scenery, creating new lakes, for example. Old Faithful is another famous part of the park that draws yearly visitors, although there are other geysers in Yellowstone that are definitely worth visiting.
This park has been named an Arizona UNESCO World Heritage Site, and for good reason. The Grand Canyon, one of the natural world wonders resides in the park, and is undeniably breathtaking and necessary to see if you're in the state. No other park offers the same kind of experience that Grand Canyon can, with its many tributary canyons and their colors thanks to the many layers of Precambrian era rocks that have been exposed. The views here are simply the best, so forget about your fear of heights and bring the camera.
Yosemite falls is the highest waterfall in North America. It is located in Yosemite National Park of California. It is the 6th highest waterfall in the world. The thing which makes it attractive and natural wonder is its beauty and the way it is created by the God. Yosemite Falls actually consists of three separate falls: Upper Yosemite Fall (1,430 feet), the middle cascades (675 feet), and Lower Yosemite Fall (320 feet). There are countless waterfalls in the Yosemite Valley and it looks best in the spring season when most of the snowmelt occurs.
This park gets its name from its location within Washington's Olympic Peninsula, and for this reason has part of its boundaries sharing the rugged but beautiful Pacific coastline. If you're into hiking more forested trails, there's an entire impressive network of hiking trails, some more remote than others. If a good hike is what you're looking for then there's the Alpine forests, the temperate rainforests and the dry forests in the eastern region.
One of the most striking features of Acadia National Park is its proximity to the Atlantic Ocean. But this park's adjacency to the ocean isn't its only attraction- there are numerous pristine lakes, mountains, and woodlands to explore. Mount Desert Island is another unique and gorgeous option to hike around if you go. If you're yearning for the adventure of all adventures, then there's Cadillac Mountain, which with its far eastern location and extreme height is actually one of the first places in the United States that sees the sunrise.