Bryce Canyon isn't a canyon at all, but a twenty-mile-long series of massive eroded amphitheaters carved out of the eastern edge of the verdant Paunsaugunt Plateau, shaped like horseshoes crammed tight with freestanding walls, slots, and windows and fins.
There's nothing like it anywhere in the world that I can think of.
It's even unique by Southern Utah standards which is why it has become so popular, and why it's love at first sight for all comers who are invariably entranced by the million shades of pink, white and orange limestone towers morphed and eroded by the patient force of water, and the heat of the sun.