The perforated aluminum cladding surrounds the lower-level public area, which contains the pools and gym for the tenants. Khanna and Schultz played with the idea of using stainless steel, but found that aluminum had the appropriate strength for the building's needs. "With the lights glowing from inside, it turns the whole building into a big lantern at night," says Schultz.  Photo 2 of 17 in A Modern Aesthetic in Mumbai