Interesting video of Pritzer Prize winning architect Richard Rogers' Barajas Airport in Madrid, Spain. A short excerpt from the firm's website appears below:
"...A simple palette of materials and straightforward detailing reinforce the direct character of the architecture. Internally, the roof is clad in bamboo strips, giving it a smooth and seamless appearance. In contrast, the structural 'trees' are painted to create a kilometre-long vista of graduated colour. The lower levels of the building house baggage handling, storage and plant areas, and offer a striking contrast with the lightweight transparency of the passenger areas above."
Rogers Stirk Harbour + Partners Link
Richard Rogers Wiki