the MOST beautiful place in the world is your own home
There are a lot of places where there spectacular natural beauty - they're different, but still spectacular. I don't really see any way to choose one among them. Maybe Keukenhof Garden in the Netherlands when the tulips are at their peak (I'll be there in a couple of weeks again), of one of the National Parks like Yosemite or Yellowstone. Or there are Canyonlands, Zion, Arches, Capitol Reef ... Bavaria is a beautiful area or maybe Iceland especially around Gullfoss. Or the sunset over the Gulf of Mexico from my back deck when I lived in Panama city Beach.
The New Jersey Turnpike, near Elizabeth.
Hawaii
It depends what you want! if you like snow and mountains, i'd go with switzerland because there are a lot of them. if you like Surfing go with sth pacifical. i really like oceania, it's far from everything. but the rain forests in new zealand, or the cherry blossom in Japan, the red autumn in new England, or the Copacabana in Rio de Janeiro.... so there are a lot of things to explore!
