Identify.

Basilica Nova, in Roman Forum, 306-313 CE, finished by Constantine in 313 CE, reaffirms primacy of Rome (as a capital, after four Tetrachs), great hall for public affairs, had claristory, highly decorated, concrete faced with brick, variegated marble revetments (thin marble), coffered ceilings (blue with gold gilding), geometric marble floor, sculptures of past emperors, major political and administrative center in Rome