The pioneering perceptual artist James Turrell marked a career milestone this month with the opening of his 100th Skyscape, a site-specific architectural installation with a simple construction: a domed structure with an oculus pointed toward the sky.

Now permanently on view at ARoS in Aarhus, Denmark, “As Seen Below” is the latest iteration of the iconic series, which has been installed in 26 countries. Spanning more than 50 feet high and 130 feet wide, the enormous dome most often opens up to an unfiltered sky, although various “color shifts” seal the oculus and instead cast brilliant color around the space.

Read more about the project previously on Colossal, and reserve your tickets on the museum’s website.