The Danish Pavilion at the World Expo 2008 in Zaragoza, Spain is a massive sight to see all thanks to three Copenhagen-based firms: Spektrum Arkitekter, Loop Associates and 2+1 communication agency. Inside are the Circulos de Agua (Circles in the Water), an exhibition about sustainable living and lasting solutions that echoes the water and sustainability theme of the World Expo, itself. The underlying message is that everything we do spreads like ripples through water. Five cylinders displaying one of the five different themes ( Wind, Water, Daylight, Biomass, Restaurant & Shop ) are suspended from the ceiling with purplish-blue hues swirling throughout.