Columbia subject headings:
Forum of Trajan (Rome, Italy)
Mercati Traianei (Rome, Italy)
Rome (Italy)--Buildings, structures, etc.
Harvard subject headings:
Forum of Trajan (Rome, Italy)
Mercati Traianei (Rome, Italy)
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Forum of Trajan (Rome, Italy)
Rome (Italy)--Buildings, structures, etc.
Trajan's Markets.