Rainbows on the horizon are impossible to approach, let alone pass through – they flicker and fade like phantoms, except in the case of this iconic space.

Your Rainbow Panorama by Olafur Eliasson is an enclosed circular walkway that sits atop the ARoS Aarhus Kunstmuseum in Denmark. Its colored glass spans from floor to ceiling and rotates visitors through five hundred feet of color, looping them through a rainbow of panoramic city views.

The experience of walking along this 500-foot path is at once reductive and complex. At each step, the city outside becomes a monochromatic landscape, filtered through the lens of single slices of color that rotate as you move.

From outside, the raised structure forms a bright beacon within the city, a recognizable icon thanks to its combination of round shape and vibrant color. As this project illustrates, powerful architecture can be about more than structure, building and void – it is also about shaping experience through color and light.

According to its Danish-Icelandic designer, it is “a space which virtually erases the boundaries between inside and outside – where people become a little uncertain as to whether they have stepped into a work or into part of the museum. This uncertainty is important to me, as it encourages people to think and sense beyond the limits within which they are accustomed to moving.”  In the end, is it an gallery space, a viewing platform, a permanent art installation … or does it perhaps span a spectrum of spatial definitions as well as colors?