My favorite landmark is the LDS Temple that sits on ten acres of land in downtown Salt Lake known as Temple Square... It was built by the Mormon pioneers and was completed in 1897, 40 years after it was begun.  My favorite natural landmark is Mt. Timpanogos, south of Salt Lake in American Fork Canyon.  Timpanogos Cave has three chambers filled with geological formations.  The temperature inside the Cave remains at 42 degrees yearound.  The mountain resembles a woman lying on her back.  Legend says that she is an Indian maiden.  A huge 4000 pound stalactite inside the cave is said to be her heart. 
West of the city is the Great Salt Lake, a residue of Lake Bonneville which originally covered the entire valley. 
Ensign Peak is a prominent point on the north end of the city. 

Nature:

The canyons surrounding the city contain a wide variety of wildflowers, waterfalls, trees and foliage; cottonwood, cedar, aspen and pines.  Beautiful hues of orange, red, yellow and brown are prominent in the fall season.  Deer, elk, bear and moose habitate the mountain areas and fowl and fish thrive in the rivers and streams. Sagebrush and cactus abound on the Western Desert.
The mountains are drenched with snow in wintertime.