The new National Library of Belarus resembles an
enormous gem to symbolize the enduring and powerful
worth contained in books as legitimate holders of
knowledge and culture values. The geometric name of
the big glazed shape is Rhombicuboctahedron. That is a
solid analyzed as early as 1509 by Italian mathematician
Luca Pacioli in his book "The Divine Proportione" which
also included illustrations by Leonardo da Vinci.
With best regards.