The structural engineer and architect Pier Luigi Nervi, gave buildings curves and created corbel vaults from reinforced concrete that had the intricacy of honey combs . A recent photo of Pope Francis in Paul VI Audience Hall is just one example of his geometric palazzi -many of which comprised prefabricated pieces, the pattern of which were often revealed by their seams though, on occasion, unified by a smooth skimming of cement.
Pier Luigi Nervi worked mostly in Italy but also had commissions internationally. Here is New York City we can enjoy, though not easily, his George Washington Bridge Bus Station.
Urban grit notwithstanding, Nervi's innovations ennobled this humble material and raised the re-bar!
This is another rocking bead, @Erika
! My only frustration is that I can't find better video for this remarkable designer.