I've been to Bryce Canyon NP three times. First time just after moving to the US before I started working at UCSF, second time during the road trip with Agnieszka, and third time now during the honeymoon. During each single of those visits I was deeply touched by the canyon's beauty. It is one of those places in the world that takes your breath away, even if you see it over and over again.
What makes Bryce Canyon beautiful and unique are the rocks that form it. They are called "Hoodoos", which means "to cast a spell". Hoodoos are formed by the erosion, which must have been particularly strong at Bryce. They have amazing vivid colors mostly thanks to iron and manganese oxide minerals. At the photos below you can see how much the canyon's colors can change depending on the sun's position.
Bryce Canyon (Sunset Point) around sunset:
Bryce Canyon around sunrise: