facing the concrete frame of a multi-story building with glass vacuum panels outside

accent architecture avantgarde base blue bright building buildings built city concrete connoisseurs construction contemporary continues convenience design development downtown elements exceptional exterior external facing frame geometric glass hip life lifestyle lined metal minimalism modern modernism monolithic multifunctional multistory northwest outdoors outside panels perspective rectangles reflected reflection scene shadow sky skyscrapers strict structure structures style stylish tracery transitions urban vacuum walls which windows