The Xiying Rainbow Bridge in Penghu, Taiwan is one such design that truly shines, both literally and figuratively. At night, this walkway transforms into more than your average overpass. Neon lights affixed to the side of the bridge illuminate the water, below, following a rainbow's spectrum of colors. The remarkable sight is truly breathtaking.
A rainbow bridges Mount Everest and Mount Nuptse - The phenomenon pictured in this photograph is actually not a rainbow at all, but rather a circumzenith arc. It occurs when sunlight refracts through ice crystals high in the atmosphere, bouncing the sun rays back up.