I've been on an architecture kick lately. It started with a Maya Lin documentary from Net Flicks. Then one about Frank Gehry. Then I.M. Pei. Now I'm hooked. The first two buildings are designed by I.M. Pei. The larger photo is The National Center for Atmospheric Research in Boulder, CO. The smaller is The Louvre in Paris. The third photo is of The Guggenheim Museum in Bilbao, Spain designed by Gehry.