MoMA

I went to MoMa, the Museum of Modern Art in NY, a few months ago and they had an architectural exhibit. They had sketches, plans, and, most of all, models. Here are my pictures from it:A particularly interesting design was Hotel Habitat (immediately above). A plaque read, "The design concept for Hotel Habitat is "your room in a tree". The building is encased in a steel "energy mesh," with each of the mesh's five thousand "leaves" comprising a photovoltaic cell, a battery, a processor, and an LED capable of emitting red, green, or blue light. During the day, the photovoltaic cells collect energy from the sun, charging the batteries, at night the LEDs emit a color, which varies according to the amount of energy the cells have collected. The stell skin- architecture as performance- then becomes a cloud of artificial light around the hotel, and a kind of thermometer."
In the model, the building is glowing neon green, but by the LED lights, they actually mean the slightly visible dots that make up the mesh netting.
Here's more techinical details.