Half Dome, Yosemite National Park

After the 8 mile uphill hike from Happy Isles and the final 900 foot climb up the granite side of Half Dome climbers deserve to take a rest in one of the most beautiful places on earth.

This outcrop of granite in the shape of half a dome has become the logo of Yosemite. The missing half was sheared off by glacial erosion.

Half Dome's unique position and shape make it among the most easily identifiable landmarks in the Valley. The view from Glacier Point is as good as they come.

This is a huge domed granite mountain, 8,800 feet high that was cut in two by glacial activity, leaving a 2,200 foot cliff with the steepest vertical grade in the USA

Your choice whether to actually climb it or not, although it's seasonal so check that out first.
But the half dome can be seen from virtually anywhere in the park, its that big.